At room temperature, more than half of the nonmetal elements are...?

Question

a. alloys.
b. gases.
c. liquids.
d. solids

???

Some elements on the right side of the periodic table form molecules of two atoms each, which are called ............ molecules.
??????????

A substance that will conduct electricirt only under certain conditions is called a ...........
??????

Brass is a(n) .............. formed by mixing copper and zinc.
??????

PLEASE HELP. my take home test. it's due in less than two hours!

Answer 1

1) At room temperature, more than half of the nonmetal elements are GASES.
2) Some elements on the right side of the periodic table form molecules of two atoms each, which are called DIATOMIC molecules.
3) A substance that will conduct electricirt only under certain conditions is called a SEMICONDUCTOR.
4) Brass is a(n) ALLOY formed by mixing copper and zinc.
Good Luck=)

Answer 2

At room temperature, more than half of the nonmetal elements are gases. As someone else pointed out, all the noble gases, fluorine, chlorine, oxygen and nitrogen are all gases. (If you want an exact count, there are 6 nonmetals that are solid at room temperature, one that's liquid, 10 that are gases, and one (ununoctium) that is so recently discovered and so highly radioactive that they don't know what phase it exists in at room temperature.)

Some elements on the right side of the periodic table form molecules of two atoms each, which are called diatomic molecules. "Diatomic" means "two atoms".

A substance that will conduct electricity only under certain conditions is called a semiconductor! I can't believe no one else has gotten this one.

Edit: I take it back; someone else got it while I was typing this.

Brass is an alloy formed by mixing copper and zinc.

Answer 3

i think it's gases.
coz' since ya r talkin abt elements, alloys is totally impossible and you won't find alloys in nonmetals.
and,
all the period 1 non metals from group-6 are gases, except carbon.
all group-8 , noble gases are gases.
and , in halogens, up to chlorine is gases.
so, it must be gases!
since ? is more than half




that's the first multiple choice question.
the first blank is 'diatomic' molecules.
the second blank could be electrolytes, which only conduct in fused or aqueous state.
if it's not substance and element, than, the answer will be graphite since the electron flows only in one direction , perpendicular to planes.

brass thing is an alloy
you should not try to look on internet if it's against the rules of 'take home test'.

Answer 4

At room temperature, more than half of the nonmetal elements are...?

d.solids

(sorry don't know second question)

A substance that will conduct electricirt only under certain conditions is called a?

conductor

(sorry don't now this one either, but i hope i helped some,lol.)

Answer 5

Agree with the first guy and the last answer is Brass is an alloy. Don't know the second one.

Answer 6

first question is definatly b - gasses,
non-metals, carbon oxegen neon hydrogen helium etc all gasses
second question is di-atomic, for obvious reasons
third is electrylite
fouth is alloy - vauge def of alloy is a mixture of two or more metals forming another metal.(i said vaugue so dont quote me)

Answer 7

b- gases
1-molecular molecules
2- ?
3-alloy -?
hope this helps a little

Answer 8

eye have the perfect answer to your problem... as soon as you get home do all your homework with rests inbetween, then you can go out to play ;) peeeeeeeeeeeeeeeeeace...