Reactivity and Atomic Structure

Question 1

Two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei

Answer 1

Isotope

Question 2

The number of protons in the nucleus of an atom

Answer 2

Atomic number

Question 3

Atoms that have unequal numbers of protons and electrons

Answer 3

Ion

Question 4

Soft, shiny, extremely reactive

Answer 4

Alkali Metals

Question 5

Reactive metals

Answer 5

Alkaline Earth Metal

Question 6

Metals that are fairly unreactive, malleable, conduct electricity

Answer 6

Transition metals

Question 7

Non reactive

Answer 7

Noble Gases

Question 8

Very reactive

Answer 8

Lathanides

Question 9

All reactive

Answer 9

Actinides

Question 10

Force that holds the nucleus together

Answer 10

The Nucleus Force

Question 11

Total number of protons and neutrons in the nucleus

Answer 11

Mass number

Question 12

Where is most of the mass of an atom located?

Answer 12

Within the nucleus because protons and neutrons contribute to most of the mass of the atom

Question 13

Extremely reactive gases that form regions with one negative charge

Answer 13

Halogens

Question 14

Two regions of an atom

Answer 14

Nucleus, Electron Cloud

Question 15

Electron Cloud

Answer 15

Surrounds the nucleus; majority of volume (super big, but super light)

Question 16

Element

Answer 16

Substance(s) that cannot be broken down into smaller compounds through chemical reactions; the smallest building block of matter.

Question 17

Chemical Reaction

Answer 17

The change of the substance into a new one, that has a different chemical identity.

Question 18

Bond

Answer 18

Connections that join elements together.

Question 19

Atomic Weight

Answer 19

The total weight of all the protons, electrons, and neutrons in a substance

Question 20

Parts & Charges of the Atom

Answer 20

Neutron: No charge
Proton: Positive Charge
Electron: Negative Charge