General Science Elements and metals

General Science Elements and metals

Question 271 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Iron is attracted to a magnet while tin is not. If a mixture of iron and tin pieces is placed near a magnet,.....
A
the iron and tin will dissolve
B
the iron will separate from the tin
C
the tin will become more dense than the iron
D
the iron will become more dense than the tin
Question 272 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If another oxygen atom were added to the reactant in the above equation, what would have to happen to the product to keep the equation balanced?
A
An oxygen atom would have to be added
B
A hydrogen atom would have to be added
C
An oxygen atom would have to be taken away
D
A hydrogen atom would have to be taken away
Question 273 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following correctly lists the 3 main groups of elements from greatest conductivity to least conductivity?
A
Nonmetal->Metalloid->Metals
B
Metalloids->Metals->Nonmetals
C
Metals->Metalloids->Nonmetals
D
Nonmetals->Metals->Metalloids
Question 274 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the charge of an electron?
A
Positive
B
Negative
C
Neutral
D
None of these
Question 275 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which subatomic particle has a negative charge?
A
proton
B
neutron
C
electron
D
nucleus
There are 275 questions to complete.
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