chap 2

Question 1

group 1 elements are called?

Answer 1

alkali metals

Question 2

group 2 elements are called?

Answer 2

alkaline earth metals

Question 3

group 16/6a elements are called?

Answer 3

chalcogens

Question 4

group 17/7a elements are called?

Answer 4

halogens

Question 5

group 18/8a elements are called?

Answer 5

noble gases

Question 6

groups go down or across?

Answer 6

down

Question 7

periods go down or across?

Answer 7

across

Question 8

what are diatomic elements?

Answer 8

BrINClHOF

Question 9

atomic # = ?

Answer 9

protons

Question 10

mass # = ?

Answer 10

protons + neutrons

Question 11

properties of metals?

Answer 11

shiny, conduct heat and electricity, solid at room temp (except mercury)

Question 12

molecular compounds are made up of what type of element?

Answer 12

non metals

Question 13

cation, pos or neg?

Answer 13

pos

Question 14

anion, pos or neg?

Answer 14

neg

Question 15

whats the mass, and how many protons, neutrons, and electrons are in Carbon-12?

Answer 15

mass: 12, p = 6, n = 6, e = 6

Question 16

how do you find atomic weight?

Answer 16

multiplying the isotope mass with percent. do this for every isotope and add them up.