Atomic Structure

Question 1

If an atom has an atomic number of 35 and has 40 neutrons, it has a mass number of _____.

Answer 1

75

Question 2

The _____ is the particle with a negative charge.

Answer 2

electron

Question 3

If an atom has an atomic number of 23 and has 15 neutrons, it has _____ electrons.

Answer 3

23

Question 4

If an atom has 35 positive particles, it has _____ negative particles.

Answer 4

35

Question 5

The proton has a _____ charge.

Answer 5

positive

Question 6

The _____ are located in the nucleus.

Answer 6

protons and neutrons

Question 7

The _____ are located outside the nucleus.

Answer 7

electrons

Question 8

The _____ is the particle in the atom with no charge.

Answer 8

neutron

Question 9

The _____ have the same mass.

Answer 9

protons and neutrons

Question 10

The proton has a mass of _____ amu.

Answer 10

1

Question 11

The electron has a mass of _____ amu.

Answer 11

0

Question 12

The neutron has a mass of _____ amu.

Answer 12

1

Question 13

True/False: The nucleus is about the same size as the electron cloud.

Answer 13

False

Question 14

If the atom where the size of a stadium, the nucleus would be the size of ___. (the stadium, a car, a bleacher, or a marble)

Answer 14

a marble

Question 15

Atom #1 has 14 protons, 15 neutrons, and 14 electrons.

Atom #2 has an atomic number of 14 and a mass number of 30.

These atoms are ____. (different elements or isotopes)

Answer 15

isotopes

Question 16

Atoms with the same number of protons but different number of neutrons are called _____.

Answer 16

isotopes

Question 17

An atom has 1 proton and a mass number of 1. It has _____ neutrons.

Answer 17

0

Question 18

The _____ number identifies the element.

Answer 18

atomic

Question 19

The _____ number is the size of the atom.

Answer 19

mass

Question 20

An atom has 10 electrons and a mass number of 22. It has _____ neutrons.

Answer 20

12

Question 21

Atom #1 has 4 electrons and 6 neutrons.

Atom #2 has an atomic number of 6 and a mass number of 10.

These atoms are _____. (different elements or isotopes)

Answer 21

different elements

Question 22

An atom has 10 electrons and a mass number of 22. It has an atomic number of _____.

Answer 22

10

Question 23

This is the central core of the atom

Answer 23

nucleus

Question 24

This surrounds the central core

Answer 24

electron cloud

Question 25

All of the mass of the atom is located here.

Answer 25

nucleus

Question 26

This part of the atom has no mass.

Answer 26

electron cloud

Question 27

Atoms that are isotopes have different ___ numbers.

Answer 27

mass

Question 28

Atoms that are isotopes have the same ___ numbers.

Answer 28

atomic

Question 29

Atoms that are isotopes have the same number of ____.

Answer 29

protons

Question 30

Atoms that are isotopes have different numbers of ___.

Answer 30

neutrons

Question 31

When atoms lose energy, their electrons move ____.

Answer 31

down to lower energy levels

Question 32

How many electrons can be in the first energy level?

Answer 32

2

Question 33

How many electrons can be in the second energy level?

Answer 33

8

Question 34

How many electrons can be in the third energy level?

Answer 34

18

Question 35

When atoms gain energy, their electrons move ____.

Answer 35

up to higher energy levels

Question 36

Light emitted from fireworks is caused from electrons moving (up or down) between energy levels.

Answer 36

down