8th Grade Chemistry

Question 1

Solid

Answer 1

holds shape and has a fixed volume

Question 2

Liquid

Answer 2

Shape of container; Free surface; Fixed volume

Question 3

Gas

Answer 3

Shape and Volume of container

Question 4

Plasma

Answer 4

Gas with a portion of the particles Ionized

Question 5

Lewis Dot structure

Answer 5

A form of recording atoms that displays atomic symbol as well as valence electrons

Question 6

Atomic Theory

Answer 6

The theory that everything is composed of microscopic pieces called atoms

Question 7

Protons

Answer 7

Positive part of an atom; found in the nucleus

Question 8

Electrons

Answer 8

Negative part of an atom; found in electron clouds

Question 9

Neutrons

Answer 9

Neutral parts of an atom; found in the nucleus

Question 10

Nucleus

Answer 10

The core of an atom

Question 11

Charge

Answer 11

How positive or negative an atom is

Question 12

Element

Answer 12

An atom with a specific number of protons, electrons, and neutrons

Question 13

Molecule

Answer 13

A substance composed of multiple elements

Question 14

Atom

Answer 14

The basic building blocks of everything

Question 15

Valence Electrons

Answer 15

The electrons on the outer shell of an atoms electron clouds

Question 16

Electron cloud (shell)

Answer 16

The area of an atom surrounding the nucleus; holds all of the electrons within it

Question 17

Bohr Model

Answer 17

A model of the atoms

Question 18

Metalloids

Answer 18

A non-metal with some traits of a metal

Question 19

Metals

Answer 19

An element with the traits of a metal

Question 20

Non Metals

Answer 20

Any element that is not a metal

Question 21

Noble Gases

Answer 21

Any gas in which the outer electron cloud is full

Question 22

Halogens

Answer 22

Any of the five nonmetals having seven electrons in their outer shell

Question 23

Atomic Mass

Answer 23

The mass of the element

Question 24

Atomic Number

Answer 24

The amount of protons an atom has

Question 25

Alkali Metals

Answer 25

Any of the metals containing only one electron in their outer shell

Question 26

Alkali Earth Metals

Answer 26

Any of the elements from group two

Question 27

Atomic Symbol

Answer 27

Displays atomic number, atomic mass, element name, and element symbol

Question 28

Groups

Answer 28

A vertical column on the periodic table

Question 29

Period

Answer 29

A horizontal row on the periodic table

Question 30

D. Mendeleev

Answer 30

Creator of the periodic table of elements

Question 31

Periodic table of elements

Answer 31

The table used to sort the elements

Question 32

Atomic Structure

Answer 32

A nucleus composed of both protons and neutrons, surrounded by shells of electrons

Question 33

Coefficient

Answer 33

Represents the amount of the whole you have

Question 34

Subscript

Answer 34

Represents the amount of a specific part of a molecule

Question 35

Ion

Answer 35

An atom with either a positive or negative charge

Question 36

Chemical Formula

Answer 36

A display of the elements And amount of each element

Question 37

Covalent Bond

Answer 37

When two elements bond by sharing electrons

Question 38

Single Bond

Answer 38

When two elements share one pair of electrons

Question 39

Double Bond

Answer 39

When two elements combine by sharing two pairs of elecrons

Question 40

Triple Bond

Answer 40

When two elements combine by sharing three pairs of electrons

Question 41

Ionic Bond

Answer 41

A bond between two elements of different ionic charges