first nine wks test

Question 0

how do you tell what the # of neutrons is

Answer 0

atomic weight minus atomic number

AW-A#

Question 1

what are independent variables and dependent variable

Answer 1

independent- the variable that is changed or manipulated

dependent- result of what was changed

Question 2

what is D.R.Y

what is M.I.X

Answer 2

D.ependent R.esult Y.-axis

M.anipulated I.ndependent X.-axis

Question 3

are protons positive or negative?

Answer 3

positive

Question 5

true or false?

metals are NOT good conductors of electricity

Answer 5

false!

Question 7

what does inert mean?

Answer 7

non-reactive

Question 8

are electrons positive or negative?

Answer 8

negative

Question 9

what is an atomic number?

Answer 9

number of protons

Question 10

true or false?

noble gases ARE stable

Answer 10

true!

Question 11

are noble gases considered stable?

Answer 11

yes

Question 12

what is the rule for the Bohr Model?

Answer 12

2,8,8
first energy level- 2 electrons
second energy level- 8 electrons
third energy level- 8 electrons

Question 13

neutrons are….¿

Answer 13

neutral

Question 14

what are valence electrons?

Answer 14

electrons found in the last energy level

Question 15

true or false?

valence electrons are electrons involved in bonding

Answer 15

true!

Question 16

are hydrogen ions more acidic or more basic?

Answer 16

more acidic

Question 17

true or false?

noble gases are inert

Answer 17

true!

Question 18

are metals positive or negative?

Answer 18

positive

Question 19

what is an oxidation #?

Answer 19

of electrons either given away or received

Question 20

what is adhesion?

Answer 20

H2O sticking to other objects

Question 21

what is a covalent bond?

Answer 21

chemical bond formed when two atoms share electrons

Question 22

are hydroxide ions more acidic or basic?

Answer 22

more basic (alkaline)

Question 23

what is cohesion?

Answer 23

H2O sticking to other H2O

Question 25

what does malleable mean?

Answer 25

bendable