quiz 2 review

Question 1

-most reactive metals
-will not find by alone in nature
-malleable and ductile; conductors of heat and electricity

Answer 1

alkili metals

Question 2

-metallic metals
-reactive but not as much as column 1
-not found alone in nature
-malleable and ductile; conductors of heat and electricity

Answer 2

alkiline earth metals

Question 3

-metallic metals
-malleable, ductile, conductors of heat and electricity

Answer 3

transition metals

Question 4

-term means salt-farmer
-react with other chemicals to form compounds
-form moleceus of two paired atoms in their elemental form
-exist at room temperature in all 3 states of matter

Answer 4

halogens

Question 5

-gases at room temperature
-are very stable because their outer valence shells are full
-exist as single atoms in their elemental form

Answer 5

noble gases

Question 6

-sometimes called kithenide series
-hard to find high concentration in nature
-used for magnetic, electric, and ideal properties for lasers
-slow to react with water

Answer 6

rare earth metals / lanthinides

Question 7

-often referred to as heavy metals
-are all radio active
-used for their nuclear properties
-some are abundant and naturally occurring (ex. uranium)
-can be synthetic (ex. plutonium)

Answer 7

actinides

Question 8

what is matter? what is it made up of? what can it be?

Answer 8

matter is anything that has mass or takes up space.
made up of many different materials
can be a substance (one type) or mixture (2 types)

Question 9

what are the 2 things elements can form? give an example for each

Answer 9

-atom (single unit of an element) ex. oxygen
-molecule (multiple units of an element) ex. h20

Question 10

what are compounds

Answer 10

2 or more different elements that are chemically joined (ex. carbon dioxide)

Question 11

compound can be either…

Answer 11

ionic or molecular

Question 12

what are ionic compounds? what do they form?

Answer 12

elements contain metal and non-metal atoms
form repeating crystal structures
ex. single unit of salt

Question 13

what are molecular compounds? what do they form?

Answer 13

elements contain non-metal atoms
form individual units
ex. carbon dioxide atom

Question 14

properties of metals

Answer 14

ductile, electrically conductive, solid, malleable

Question 15

properties of non-mentals

Answer 15

brittle, non-electrically conductive, dull, any states of matter