Chemistry Assessment 1 - Jennifer Anne Kosnik | Biblioteka

1

What are the 3 subatomic particles found in the atom?

1

Which subatomic particle(s) are found outside the nucleus?

alpha particles

electrons

neutrons

protons

1

Which subatomic particle(s) are found in the nucleus?

beta particles

electrons

neutrons

protons

1

Which two subatomic particle(s) are nearly the same size?

beta particles

electrons

neutrons

protons

1

Which subatomic particle is the smallest in size?

alpha particle

electron

neutron

proton

1

What is the charge of the an electron?

electric

positive

neutral

negative

1

The mass of an atom is located in the nucleus, whereas the volume (space the atom takes up) is in the electron cloud.

Tačno

Netačno

1

The Atomic Number of an Element Determines the Number of Which Subatomic Particle?

A Proton

B Neutron

C Electron

D Quark

1

Define the term "Isotope," and state an example of an isotope.

1

This element has 34 Protons.

1

This element has 20 neutrons.

1

This element has 8 electrons when it is a neutral atom.

1

This element has a mass number of 79.

3

Draw a Bohr Diagram of Carbon

3

Draw a Bohr Diagram of Hydrogen

1

Protons have a ________ charge.

positive

negative

nuetral

partial

1

This element usually has no neutrons.

He

Pb

H

Ar

1

Al has this many protons.

1

Rb has this many valence electrons.

1

This person created the Periodic Table.

Dimitri Mendeleev

Mike Dove

Issac Newton

Mr. Rossenfield

1

Draw an atom of Argon.

1

Using the periodic table, what is number of protons or electrons in the element with chemical symbol Ag?

1

Using the periodic table, what is number of neutrons in the element with chemical symbol Al?

1

Using the Chart above, what is mass number of the element with an atomic number of 78?

1

If a highly reactive metal with one valence electron is discovered in which group will the element best fit?

Group 1

Group 2

Group 6

Group 13

8.P.1.2

1

How are elements arranged on the periodic table?

by mass, from lowest to highest

by number of protons from lowest to highest

by date of discovery or creation from oldest to newest

8.P.1.2

1

Rank the elements with Physical and Chemical properites similar to those of Oxygen or Lithium.

Potassium (K)
Sulfur (S)
Sodium (Na)
Selenium (Se)
Cesium (Cs)
Neon (Ne)

Oxygen (O)
Lithium (Li)

1

Isotopes are atoms of the same element with the same number of protons and

a different number of electrons

a different number of molecules

a different number of neutrons

the same number of neutrons

1

In an element with a neutral charge, the atomic number is equal to the number of

1

What is the maximum number of electrons that are allowed on the second shell/orbit?

9

7

8

2

1

An atom can be identified by the number of_______________in the nucleus of an atom.

protons

electrons

Neutrons

1

Potassium has an atomic number of 19 and a mass number of 39. So, it has _________________neutrons.

19

18

20

21

1

Which of the following would be an isotope of aluminum?

Atom A: mass number=24, atomic number=13

Atom B: mass number=24, atomic number=12

Atom C: mass number=26, atomic number=14

Atom D: mass number=22, atomic number=11

1

How many valence electrons does oxygen have?

8

2

6

1

Which elements will have similar chemical and physical properties to nitrogen?

1

What is the electron configuration of Sodium?

2, 8, 9

8, 2, 9

2, 8, 8, 1

2, 8, 7, 2