all of it

Question 1

Matter

Answer 1

Anything with mass and volume

Question 2

Physical property

Answer 2

Something we can measure by seeing it

Question 3

Physical change

Answer 3

a change in shape, texture, temperature

Question 4

Melting point

Answer 4

the point at which a substance melts

Question 5

Boiling point

Answer 5

the point at which a substance boils

Question 6

Freezing point

Answer 6

the point at which a substance freezes

Question 7

Element

Answer 7

A substance that can not be broken down into simpler substances

Question 8

Compound

Answer 8

Pure substance made up of 2 or more elements bonded together chemically

Question 9

Mixture

Answer 9

A mix of at least 2 substances that do not join together chemically

Question 10

Solution

Answer 10

A mixture where 2 or more substances can’t be told apart from each other

Question 11

Chemical property

Answer 11

Describes the ability of a substance to chemically react with another substance to produce a new chemical. This can only be seen when a chemical reaction occurs

Question 12

Chemical reaction

Answer 12

Atoms are rearranged to form a new substance

Question 13

Electron

Answer 13

Negatively charged subatomic particle, found in the valence shells around the nucleus, charge of -1, relative mass is 1 over 2000

Question 14

Nucleus

Answer 14

Central core of an atom, containing the protons and neutrons

Question 15

Proton

Answer 15

Positively charged subatomic particle, found in the nucleus, charge of +1, relative mass is 1

Question 16

Neutron

Answer 16

Neutrally charged subatomic particle, found in the nucleus, charge of 0, relative mass is 0

Question 17

Atomic number

Answer 17

Number of protons in the nucleus of an atom

Question 18

Atomic mass

Answer 18

The combined mass of a single atom’s protons and neutrons

Question 19

Metal

Answer 19

a shiny, malleable, ductile substance that conducts electricity very well

Question 20

nonmetal

Answer 20

a substance that lacks the characteristics of a metal

Question 21

metalloid

Answer 21

a substance that contains properties of both metals & nonmetals

Question 22

alkali metal

Answer 22

far left side of the periodic table. Very reactive, just like halogens. They react with water and air. Soft enough to cut with a knife. They are common and almost always found in compounds. They all form ions with a charge of +1. They can bond with 1 other atom (combining capacity is 1).

Question 23

alkaline earth metals

Answer 23

eft side of the periodic table, beside the Alkali metals. They form ions with a charge of +2. They have a combining capacity of 2. They are quite reactive, just not as much as Alkali metals

Question 24

halogens

Answer 24

Non metals right beside the noble gases of the table. Very reactive and almost always found as compounds. They can have a charge of -1. They can bond with one other atom of an element (bonding capacity of 1).

Question 25

noble gasses

Answer 25

far right of the periodic table. They are unreactive and do not interact with all the other elements. They will glow if electricity passes through the gas. They are all colorless, odorless, and tasteless.

Question 26

gasses

Answer 26

substance that is in a vaporous state of matter. Gases are easy to compress, They expand to fill their containers, and occupy far more space than any other state of matter.

Question 27

isotopes

Answer 27

Atoms with the same number of protons but different numbers of neutrons

Question 28

ion

Answer 28

A atom or molecule with a net charge due to the loss or gain of one or more electrons

Question 29

ionic charge

Answer 29

The electrical charge of an ion caused by the loss or gain of one or more electrons from an atom or group of atoms

Question 30

period

Answer 30

A row of chemical elements

Question 31

group

Answer 31

A column of chemical elements with identical valence electrons

Question 32

valence electron

Answer 32

Electrons located on the outermost shell of an atom

Question 33

valence shell

Answer 33

The outermost shell of an atom that surrounds the nucleus. The valence shell hold the electrons of an atom

Question 34

ionic compound

Answer 34

A compound that forms when a nonmetal interacts with a metal. The metallic atoms lose electrons to become cations.

Question 35

ionic bond

Answer 35

Chemical attraction between two oppositely charged ions (non metals and metals)

Question 36

covalent bond

Answer 36

Chemical bond that involves the sharing of electron pairs between atoms

Question 37

molecule

Answer 37

Smallest particle of an element that retains the chemical properties of that element

Question 38

molecular compound

Answer 38

A compound composed of two or more nonmetal atoms that share their electrons in a covalent bond

Question 39

Pure substance

Answer 39

a substance made up of only one kind of matter