5.1

Question 1

protons

Answer 1

determines identity of atom
+1 charge
mass of 1 amu
in nucleus

Question 2

neutrons

Answer 2

holds nucleus together
no charge
mass of 1 amu
in nucleus

Question 3

electrons and valence electrons

Answer 3

-1 charge
virtually no weight
outside of nucleus

valance electrons are in the outermost ring around the nucleus

Question 4

isotopes

Answer 4

atoms of the same element but with different masses from differing numbers of neutrons – if the nucleus is unstable, then the atom is radioactive

Question 5

coulombic attraction

Answer 5

force of attraction between charged particles

Question 6

what’s the relationship between charge and force

Answer 6

direct

Question 7

what’s the relationship between distance and force

Answer 7

indirect

Question 8

what pair of charges are attracted

Answer 8

opposite charges

Question 9

what pair of charges are repelled

Answer 9

same charges

Question 10

direct relationship

Answer 10

as one factor increases, the other increases

Question 11

indirect relationship

Answer 11

as one factor increases, the other decreases

Question 12

charge x3 –> force x ?

Answer 12

3

Question 13

distance x1/3 –> force x ?

Answer 13

9