1

Question 1

atomic mass

Answer 1

neutrons plus protons

Question 2

atomic number

Answer 2

amount of protons

Question 3

neutrons

Answer 3

mass num - atomic number

Question 4

ion

Answer 4

charged either negative or positive

Question 5

rutherford theory

Answer 5

gold foul

Question 6

thompson

Answer 6

rayed cathode exp charge of particles in a vacuum

Question 7

isotop

Answer 7

different amount of neutrons

Question 8

valence electron

Answer 8

an electron that’s in the highest occupied energy level if an atom

Question 9

lustrous meaning

Answer 9

shiny

Question 10

how many valence electrons does a alkali metal have

Answer 10

2

Question 11

how many valence electrons does a alkaline earth metal have

Answer 11

2

Question 12

is group x axis or y axis

Answer 12

x

Question 13

what is a metalloid

Answer 13

semiconductors has physical products of both

Question 14

when does a electron move down orbit

Answer 14

when it loses energy and goes to a lower energy level

Question 15

when does a electron absorb a photon

Answer 15

when it moves up in energy level

Question 16

why does a electron move to a higher energy level

Answer 16

when it gaines energy

Question 17

when does a electron emit light

Answer 17

when a photon is released

Question 18

1. The mass of an atom is primarily determined by the number of _____________ and _____________ in the nucleus.

Answer 18

protons and neutrons

Question 19

Carbon-12 and Carbon-13 have the same atomic number and a different atomic mass. They are _____________.

Answer 19

isotopes

Question 20

How many valence electrons are in found in the outer energy level of halogen atoms?

Answer 20

7