Question 1

All atoms are always

Accepted Answer

neutral

Answer

positive

Answer

negative

Answer

fake

Question 2

How does an isotope compare to an atom?

Accepted Answer

same number of protons, different number of neutrons

Answer

same number of neutrons, different number of protons

Answer

same number of electrons, different number of protons

Answer

different number of protons and different number of electrons

Question 3

What subatomic particle identifies an element?

Accepted Answer

proton

Answer

nucleus

Answer

electron

Answer

neutron

Question 4

The number of protons is also the ______________.

Accepted Answer

atomic number

Answer

column number

Answer

mass number

Answer

avg. atomic mass

Question 5

How many neutrons does Np-240 have?

Accepted Answer

147

Answer

333

Answer

240

Answer

93

Question 6

Why are most isotopes (and all atoms) neutral?

Accepted Answer

# P equals # E

Answer

# P does not equal # N

Answer

# P does not equal # E

Answer

#P equals # N

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