Lesson 2: Atomic Structure

Last updated almost 3 years ago

17 questions

1

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Lesson 2: Atomic Structure

Last updated almost 3 years ago

17 questions

Atomic Structure

Objectives:  Students will...
state the location, charge, and mass of protons, neutrons, and electrons.
determine the number of protons, neutrons, electrons, mass number, and charge of an atom or ion.
interpret or construct an atomic symbol to describe an atom or ion.
use the number of protons, neutrons, and electrons to draw a model of an atom or ion, identify the element, and determine the mass and charge.

Build an Atom - PhET Simulation
Part 1: Atom Screen

Directions: Click on the 'Atom' Screen in the simulation below.  Answer questions 1-6.

If you'd like to have the simulation open in another screen while you work, click here: PhET Build an Atom Sim

1

Take three minutes to interact with the simulation. Write three observations you have about the simulation.

1

Complete the table

An explanation video will be uploaded soon. :) Sorry for the delay. 

Build an Atom - PhET Simulation
Part 2: Symbol Screen

Directions:  Click on the 'Symbol' screen at the bottom of the simulation, then answer questions 11-12.

If you'd like to have the simulation open in another screen while you work, click here: PhET Build an Atom Sim

1

Click on the Symbol screen and interact with the simulation. Write three observations you have from the 'Symbol' screen.

1

An explanation video will be uploaded soon. :) Sorry for the delay.

1

Part 3: Game Screen

The moment you've been waiting for! Click on the 'Game' Screen at the bottom of the simulation. Spend some time playing each of the four games.

Add your score for each game to the picture below.

1

Draggable item		Corresponding Item

Use the periodic table below to answer questions 13-15.  Note: the number above each element symbol is the element's atomic number.

1

Draggable item		Corresponding Item

1

Use the periodic table to fill out the table below. Assume all atoms are neutrally charged (i.e., they are not ions!)

1

Draggable item		Corresponding Item

1

Use the periodic table to fill out the table below.

1

Draggable item		Corresponding Item

Atomic Structure

Objectives:  Students will...
state the location, charge, and mass of protons, neutrons, and electrons.
determine the number of protons, neutrons, electrons, mass number, and charge of an atom or ion.
interpret or construct an atomic symbol to describe an atom or ion.
use the number of protons, neutrons, and electrons to draw a model of an atom or ion, identify the element, and determine the mass and charge.

Build an Atom - PhET Simulation
Part 1: Atom Screen

Directions: Click on the 'Atom' Screen in the simulation below.  Answer questions 1-6.

If you'd like to have the simulation open in another screen while you work, click here: PhET Build an Atom Sim

Take three minutes to interact with the simulation. Write three observations you have about the simulation.

Which subatomic particle determines an atom's identity?

neutron

proton

electron

Determine the charge, mass, and location of each subatomic particle in the atom.

mass number = 1
in the orbits (orbitals)
Neutral (0) charge
Negative (-) charge
mass number = 0
in the nucleus (center)
Positive (+) charge

proton
neutron
electron

Which of the following best describes how to calculate the mass number of an atom?

Mass number = (# of protons) + (# of neutrons) + (# of electrons)

Mass number = (# of protons) - (# of electrons)

Mass number = (# of protons) + (# of neutrons)

Mass number = (# of electrons) - (# of neutrons)

Which of the following best explains what an ion is?

An atom with a different number of protons and neutrons

An atom with a different number of electrons and neutrons

An atom with a different number of protons and electrons

An atom with the same number of protons and electrons

Complete the table

An explanation video will be uploaded soon. :) Sorry for the delay. 

Build an Atom - PhET Simulation
Part 2: Symbol Screen

Directions:  Click on the 'Symbol' screen at the bottom of the simulation, then answer questions 11-12.

If you'd like to have the simulation open in another screen while you work, click here: PhET Build an Atom Sim

Click on the Symbol screen and interact with the simulation. Write three observations you have from the 'Symbol' screen.

Let's figure out the important parts of an atomic symbol.

Using the symbol above, identify:
how the value of each letter is determined
what the letter represents.

represents: charge
represents: element symbol
represents: atomic number
represents: mass number
determined by: (# of protons) + (# of neutrons)
determined by: (# of protons) - (# of electrons)
determined by: # of protons

a
b
c
d

An explanation video will be uploaded soon. :) Sorry for the delay.

Part 3: Game Screen

The moment you've been waiting for! Click on the 'Game' Screen at the bottom of the simulation. Spend some time playing each of the four games.

Add your score for each game to the picture below.

Match the sentences below with the words that best go in the blanks.

Draggable item		Corresponding Item
Protons and neutrons are ____ than electrons.		atoms
There is mostly ____ between electrons.		nucleus
The center part of an atom is called the ____.		protons
All matter is composed of tiny particles called ____.		outside of
Elecrons are found ____ the nucleus.		empty space
A nucleus is made up of neutrons and ____.		more massive

Use the periodic table below to answer questions 13-15.  Note: the number above each element symbol is the element's atomic number.

A calcium (Ca) atom has a mass number of 42. How many neutrons are in the atom?

22

20

Impossible to tell with information given

42

An oxygen ion with a charge of -2 has eight electrons.

True

False

Match the following atom/ion descriptions with the element

Draggable item		Corresponding Item
An atom with 36 protons and 36 electrons		Tc (Technetium)
An ion with 36 electrons and a charge of -1		Fe (Iron)
An atom with 43 protons		Br (Bromine)
An atom with 24 neutrons and a mass number of 50		V (Vanadium)
At atom with 23 protons and a mass number of 43		Cr (Chromium)
An atom with a neutral charge and 24 electrons		Kr (Krypton)

Use the periodic table to fill out the table below. Assume all atoms are neutrally charged (i.e., they are not ions!)

What numbers did you write in the colored boxes in question 16? Match your answers below!

Draggable item		Corresponding Item
Green		53
Blue		20
Orange		13
Pink		64
Purple		5

Use the periodic table to fill out the table below.

What numbers did you write in the colored boxes in question 18? Match your answers below!

Draggable item		Corresponding Item
Pink		10
Purple		11
Orange		+3
Green		36
Blue		+1

Which subatomic particle determines an atom's identity?

neutron

proton

electron

Determine the charge, mass, and location of each subatomic particle in the atom.

mass number = 1

in the orbits (orbitals)

Neutral (0) charge

Negative (-) charge

mass number = 0

in the nucleus (center)

Positive (+) charge

proton

neutron

electron

Which of the following best describes how to calculate the mass number of an atom?

Mass number = (# of protons) + (# of neutrons) + (# of electrons)

Mass number = (# of protons) - (# of electrons)

Mass number = (# of protons) + (# of neutrons)

Mass number = (# of electrons) - (# of neutrons)

Which of the following best explains what an ion is?

An atom with a different number of protons and neutrons

An atom with a different number of electrons and neutrons

An atom with a different number of protons and electrons

An atom with the same number of protons and electrons

Let's figure out the important parts of an atomic symbol.  


Using the symbol above, identify:
how the value of each letter is determined
what the letter represents.

represents: charge

represents: element symbol

represents: atomic number

represents: mass number

determined by: (# of protons) + (# of neutrons)

determined by: (# of protons) - (# of electrons)

determined by: # of protons

a

b

c

d

Match the sentences below with the words that best go in the blanks. 

Protons and neutrons are ____ than electrons.

atoms

There is mostly ____ between electrons.

nucleus

The center part of an atom is called the ____.

protons

All matter is composed of tiny particles called ____.

outside of

Elecrons are found ____ the nucleus.

empty space

A nucleus is made up of neutrons and ____.

more massive

A calcium (Ca) atom has a mass number of 42.  How many neutrons are in the atom?

22

20

Impossible to tell with information given

42

An oxygen ion with a charge of -2 has eight electrons.

True

False

Match the following atom/ion descriptions with the element

An atom with 36 protons and 36 electrons

Tc (Technetium)

An ion with 36 electrons and a charge of -1

Fe (Iron)

An atom with 43 protons

Br (Bromine)

An atom with 24 neutrons and a mass number of 50

V (Vanadium)

At atom with 23 protons and a mass number of 43

Cr (Chromium)

An atom with a neutral charge and 24 electrons

Kr (Krypton)

What numbers did you write in the colored boxes in question 16?  Match your answers below!

Green

53

Blue

20

Orange   

13

Pink

64

Purple

5

What numbers did you write in the colored boxes in question 18?  Match your answers below!

Pink

10

Purple

11

Orange   

+3

Green

36

Blue

+1

Lesson 2: Atomic Structure

Lesson 2: Atomic Structure

Atomic Structure

Build an Atom - PhET Simulation

Take three minutes to interact with the simulation. Write three observations you have about the simulation.

Complete the table

Build an Atom - PhET Simulation

Click on the Symbol screen and interact with the simulation. Write three observations you have from the 'Symbol' screen.

Part 3: Game ScreenThe moment you've been waiting for! Click on the 'Game' Screen at the bottom of the simulation. Spend some time playing each of the four games.Add your score for each game to the picture below.

Use the periodic table to fill out the table below. Assume all atoms are neutrally charged (i.e., they are not ions!)

Use the periodic table to fill out the table below.

Atomic Structure

Build an Atom - PhET Simulation

Take three minutes to interact with the simulation. Write three observations you have about the simulation.

Which subatomic particle determines an atom's identity?

Determine the charge, mass, and location of each subatomic particle in the atom.

Which of the following best describes how to calculate the mass number of an atom?

Which of the following best explains what an ion is?

Complete the table

Build an Atom - PhET Simulation

Click on the Symbol screen and interact with the simulation. Write three observations you have from the 'Symbol' screen.

Let's figure out the important parts of an atomic symbol. Using the symbol above, identify:how the value of each letter is determinedwhat the letter represents.

Part 3: Game ScreenThe moment you've been waiting for! Click on the 'Game' Screen at the bottom of the simulation. Spend some time playing each of the four games.Add your score for each game to the picture below.

Match the sentences below with the words that best go in the blanks.

A calcium (Ca) atom has a mass number of 42. How many neutrons are in the atom?

An oxygen ion with a charge of -2 has eight electrons.

Match the following atom/ion descriptions with the element

Use the periodic table to fill out the table below. Assume all atoms are neutrally charged (i.e., they are not ions!)

What numbers did you write in the colored boxes in question 16? Match your answers below!

Use the periodic table to fill out the table below.

What numbers did you write in the colored boxes in question 18? Match your answers below!

Part 3: Game Screen

The moment you've been waiting for! Click on the 'Game' Screen at the bottom of the simulation. Spend some time playing each of the four games.

Add your score for each game to the picture below.

Let's figure out the important parts of an atomic symbol.

Using the symbol above, identify:
how the value of each letter is determined
what the letter represents.

Part 3: Game Screen

The moment you've been waiting for! Click on the 'Game' Screen at the bottom of the simulation. Spend some time playing each of the four games.

Add your score for each game to the picture below.