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Oxygen's atomic number is 8. This means that an oxygen atom has
30
naturally occurring isotopes
protons plus the number of neutrons
neutral
eight protons in its nucleus
O-16 and O-18
numbers of neutrons
8
Which symbols represent atoms that are isotopes?
30
naturally occurring isotopes
protons plus the number of neutrons
neutral
eight protons in its nucleus
O-16 and O-18
numbers of neutrons
8
An iron atom has an atomic mass of 56. Its atomic number is 26. How many neutrons does the iron atom have?
30
naturally occurring isotopes
protons plus the number of neutrons
neutral
eight protons in its nucleus
O-16 and O-18
numbers of neutrons
8
An atom's mass number equals the number of
30
naturally occurring isotopes
protons plus the number of neutrons
neutral
eight protons in its nucleus
O-16 and O-18
numbers of neutrons
8
The nucleus of an atom consists of 8 protons and 6 neutrons. The total number of electrons present in a neutral atom of this element is
30
naturally occurring isotopes
protons plus the number of neutrons
neutral
eight protons in its nucleus
O-16 and O-18
numbers of neutrons
8
The charge of an atom is
30
naturally occurring isotopes
protons plus the number of neutrons
neutral
eight protons in its nucleus
O-16 and O-18
numbers of neutrons
8
The atomic mass of an element is defined as the weighted average mass of that element's
30
naturally occurring isotopes
protons plus the number of neutrons
neutral
eight protons in its nucleus
O-16 and O-18
numbers of neutrons
8
Two different isotopes of an element have different
30
naturally occurring isotopes
protons plus the number of neutrons
neutral
eight protons in its nucleus
O-16 and O-18
numbers of neutrons
8
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