States of matter, atoms, and bonding

Question 1

Define matter

Answer 1

anything with both a mass and a volume

Question 2

know the different states of matter and the characteristics of each

Answer 2

solid: definite shape and definite volume
Liquid: definite volume no definite shape
Gas: no definite shape no definite volume

Question 3

Know the kinetic theory of matter

Answer 3

atoms are always moving

Question 4

Know what determines the different states of matter

Answer 4

temperature

Question 5

define thermal expansion

Answer 5

when it gets hot particles move faster and it expands. When it gets cold particles condense.

Question 6

Define element and a compound.

Answer 6

Element is one capital letter and a compound is two. And element is matter made from one kind of atom and a compound has two atoms chemically combined.

Question 7

define and know the locations and charges of protons neutrons and electrons.

Answer 7

protons and neutrons are located in the nucleus and electrons are located in the cloud of electrons.

Question 8

Know the masses and unit of protons neutrons and electrons

Answer 8

Proton= 1 amu
Neutrons= 1 amu
Electrons= 1/2,000

Question 9

Define atomic number atomic mass and valence electrons

Answer 9

An= protons
Am= protons + neutrons
Ve= outer electrons

Question 10

Know where most of the mass of an atom is located

Answer 10

The nucleus

Question 11

Know the number of electrons each energy level can hold

Answer 11

level one is= 2
level two is=8

Question 12

Define isotopes

Answer 12

different forms of an element same number of protons but different number of neutrons

Question 13

Know how to draw atoms

Answer 13

lol I’m fucked

Question 14

Be able to use the periodic table (atomic number atomic mass valence electrons number of energy levels)

Answer 14

An= Protons
Am= Protons + neutrons
The number of protons is equal to the number of electrons
am - an = neutrons
energy levels depends on the row number its in.

Question 15

Define chemical formula

Answer 15

It shows the differents kinds and proportions of an atom in a compound

Question 16

Be able to identify a stable atom

Answer 16

If it has 8 valence electrons

Question 16

Know why atoms bond

Answer 16

to become stable

Question 17

CH3 CHOHOOH =

Answer 17

C=2 H=6

Question 18

(Choose ionic or covalent) The shifting of electrons

Answer 18

=Ionic metals give electrons to nonmetals.

Question 19

Know how the gaining and losing of electrons affect the charge of an atom.

Answer 19

lose electrons= atoms become positively charged.
Gain electrons= atoms become negatively charged.

Question 20

Chose ionic or covalent= The sharing of electrons

Answer 20

covalent= nonmetal share electrons with nonmetals.

Question 21

If an element has only a few electrons it is a…

Answer 21

Metal

Question 22

Valence electrons are the electrons on the…

Answer 22

Outer ring

Question 23

what are the charges of protons, negative, and electrons.

Answer 23

Protons= positive
Negative= neutral
Electron= Negative