PT #3 Question Preview (ID: 30611)
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charge of a proton
a) negative
b) positive
c) neutral (no charge)
d)
charge of an electron
a) negative
b) neutral (no charge)
c) positive
d)
location of an electron
a) in the nucleus
b) outside the nucleus
c)
d)
Most of our atmosphere is _______________ gas
a) carbon dioxide
b) oxygen
c) nitrogen
d) helium
If an atom is neutral, what 2 particles have equal numbers?
a) neutron and proton
b) neutron and electron
c) proton and electron
d) none of these
atomic number always equals the number of these
a) neutrinos
b) photons
c) protons
d) neutrons
symbol for iron
a) Fe
b) I
c) Ir
d) In
change that produces new substances
a) chemical
b) physical
c)
d)
example of a physical change
a) paper burning
b) ice melting
c) iron rusting
d)
how the periodic table is arranged
a) alphabetically
b) by date of discovery of the elements
c) by atomic number
d) by mass number
charge and location of a neutron
a) neutral; outside the nucleus
b) negative; in the nucleus
c) negative; outside the nucleus
d) neutral; in the nucleus
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