Atoms and Isotopes

Please open the Periodic Table linked below and use it throughout class today.

https://sciencenotes.org/wp-content/uploads/2017/02/KidsPeriodicTable2017.pdf

Do now: Complete questions 1-4 below.

1

Which subatomic particle determines the identity of an atom?

Proton

Neutron

Electron

1

Match each of the terms below with the correct description.

Stavka koja se može prevući		Odgovarajuća stavka
Atomic mass		The number of protons in an atom
Neutron		The number of protons and neutrons in an atom
Electron		Positively-charged particle in the nucleus; has a mass of 1 amu.
Proton		Particle in the nucleus with no charge; has a mass of 1 amu.
Atomic number		Negatively-charged particle outside the nucleus; has a mass of 0 amu.

1

Which of the following statements best describes the principle of attraction used in Thomson's cathode ray experiment?

Particles with opposite charges attract

Particles with the same charges attract

Particles always attract to each other

Particles never attract to each other

1

The Periodic Table Square of Aluminum is shown below.
Which of the following best describes the number of protons, neutrons and electrons present in an aluminum atom?

13 protons, 13 neutrons, 13 electrons.

13 protons, 14 neutrons, 13 electrons

13 protons, 27 neutrons, 13 electrons

27 protons, 13 neutrons, 27 electrons

14 protons, 13 neutrons, 14 electrons

14 protons, 13 neutrons, 13 electrons

Classwork: Complete questions 5-20 below. We will discuss certain questions in class to ensure your understanding.

1

Identify the following element:

Carbon (C)

Oxygen (O)

Nitrogen (N)

Hydrogen (H)

1

Identify the following element:

Beryllium (Be)

Nickel (Ni)

Hydrogen (H)

Nitrogen (N)

1

Identify the following element:

Potassium (K)

Oxygen (O)

Magnesium (Mg)

Nickel (Ni)

1

Silicon (Si)
Fluorine (F)
Magnesium
Chlorine

1

Select all which are true

1

Isotopes are _____________.

Atoms that have a charge

Atoms of the same element but with different mass

Atoms of different elements

Compounds

1

How do we calculate the mass number (atomic mass) of an isotope?

Add Electrons + Protons

Subtract Neutron - Protons

Add Protons + Neutrons

Subtract Electron - Neutrons

1

Select all which are true about atoms 1 and 2 below.

1

Select all true for Carbon -15

1

Select all true for Nitrogen -14

1

Select all true for Chromium -32

1

Select all true statements

1

Select all which are true

1

Select all which are true

1

Select all which are true

1

Select all which are true

Complete the exit ticket at the link here: https://forms.gle/aDqsv9dabw8G7Fno8

Atoms and Isotopes

Which subatomic particle determines the identity of an atom?

Match each of the terms below with the correct description.

Which of the following statements best describes the principle of attraction used in Thomson's cathode ray experiment?

The Periodic Table Square of Aluminum is shown below.Which of the following best describes the number of protons, neutrons and electrons present in an aluminum atom?

Identify the following element:

Identify the following element:

Identify the following element:

Select all which are true

Isotopes are _____________.

How do we calculate the mass number (atomic mass) of an isotope?

Select all which are true about atoms 1 and 2 below.

Select all true for Carbon -15

Select all true for Nitrogen -14

Select all true for Chromium -32

Select all true statements

Select all which are true

Select all which are true

Select all which are true

Select all which are true

Which subatomic particle determines the identity of an atom?

Match each of the terms below with the correct description.

Which of the following statements best describes the principle of attraction used in Thomson's cathode ray experiment?

The Periodic Table Square of Aluminum is shown below.Which of the following best describes the number of protons, neutrons and electrons present in an aluminum atom?

Identify the following element:

Identify the following element:

Identify the following element:

Select all which are true

Isotopes are _____________.

How do we calculate the mass number (atomic mass) of an isotope?

Select all which are true about atoms 1 and 2 below.

Select all true for Carbon -15

Select all true for Nitrogen -14

Select all true for Chromium -32

Select all true statements

Select all which are true

Select all which are true

Select all which are true

Select all which are true

The Periodic Table Square of Aluminum is shown below.
Which of the following best describes the number of protons, neutrons and electrons present in an aluminum atom?

The Periodic Table Square of Aluminum is shown below.
Which of the following best describes the number of protons, neutrons and electrons present in an aluminum atom?