Atoms

Question 1

The part of an atom that carries a positive charge

Answer 1

Protons

Question 2

The number of electrons that can be held in the first orbit (closest to the nucleus)

Answer 2

Two

Question 3

The number of electrons that can be held in the third orbit

Answer 3

Eighteen

Question 4

The part of an atom that carries a negative charge

Answer 4

Electron

Question 5

The number of electrons that can be held in the second orbit

Answer 5

Eight

Question 6

There are the same number of these two particles in a atom

Answer 6

Protons and electrons

Question 7

The atomic number is the same as the number of these particles

Answer 7

Protons

Question 8

The mass of subatomic particles is measured in _____

Answer 8

AMU’s

Question 9

The _______ _______

Tells the number of protons in the nucleus of an atom

Answer 9

Atomic number

Question 10

The mass number of an element is the sum of its _______ and _______

Answer 10

Protons and neutrons

Question 11

Atoms of the same element that have a different number of neutrons are called ______

Answer 11

Isotopes

Question 12

The _____ ______ is the space around the nucleus where electrons can be found

Answer 12

Electronic cloud

Question 13

A ______ is a subatomic particle that makes up protons and neutrons

Answer 13

Nucleus

Question 14

Different isotopes of an element will have different ______ _______ _______

Answer 14

Numbers of neutrons

Question 15

Electrons in an electron cloud are arranged into _______ _______

Answer 15

Energy levels

Question 16

The ______ _______ of an element is the average of all of the mass numbers of the isotopes of that element

Answer 16

Atomic mass

Question 17

Protons, neutrons, and electrons are examples of ______ _________

Answer 17

Subatomic particles

Question 18

Protons have a mass of ___ Amu

Answer 18

1 amu

Question 19

Electrons have a mass of _______ amu

Answer 19

1/1836 amu

Question 20

A neutron has a mass of _______ amu

Answer 20

1 amu

Question 21

A neutron has a _______ charge

Answer 21

Neutral

Question 22

Particle that makes up all other known particles in the nucleus of an atom

Answer 22

Quark

Question 23

Force of attraction or repulsion between particles in an atom

Answer 23

Electromagnetic force

Question 24

Force that binds protons and neutrons in the nucleus

Answer 24

Strong force

Question 25

Force that is key to the power of the sun and responsible for the process known as radioactive decay

Answer 25

Weak force

Question 26

Force of attraction between all objects in the universe

Answer 26

Gravity

Question 27

The number of protons in the nucleus of an atom is the ______ ________

Answer 27

Atomic number

Question 28

Democritus concluded that you couldn't keep dividing matter forever, eventually the smallest would be obtained and he called it the ______

Answer 28

Atom

Question 29

The small, heavy center of the atom is the _____

Answer 29

Nucleus

Question 30

The scientist J.J Thompson discovered the ______

Answer 30

Electron

Question 31

Particles smaller than the atom are called ______

Answer 31

Subatomic particles

Question 32

``` The nucleus of an atom contains A. Protons and electrons B. Neutrons and electrons C.protons, neutrons, and electrons D. Protons and neutrons ```

Answer 32

D. Protons and neutrons

Question 33

The number of protons in an atom with an atomic number of 18 is A. 10 B. 36 C. 18 D.8

Answer 33

C.18

Question 34

Which of the following forces within the atom is responsible for keeping electrons in orbit around the nucleus A.electromagnetic B. Weak C. Gravity D. Strong

Answer 34

A. Electromagnetic

Question 35

All nuclear particles are thought to be made of a combination of three A. Electrons B. Quarks C. Isotopes D. Molecules

Answer 35

B. Quarks

Question 36

``` The arrangement and location of what subatomic particles determine the chemical properties of an atom A. Protons B. Quarks C. Neutrons D. Electrons ```

Answer 36

D. Electrons

Question 37

Most of the mass of the atom is located in the ______

Answer 37

Nucleus

Question 38

Electrons that have the least amount of energy levels are located _______ from the nucleus

Answer 38

Closest

Question 39

In thompsons experiment , the gas in the tune gave off rays that were negatively charged particles called _______

Answer 39

Neutrons

Question 40

John dalton a theory was that matter is made of indivisible _____, or atoms

Answer 40

Particles

Question 41

The part of an atom that carries no electric charge

Answer 41

Neutrons