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Which statement about the atom's nucleus is correct
electrrons
the nucleus is made of protons and neutrons and has a positive charge
x
8 protons in its nucleus
atoms of different elements could join to form compounds
amount of a substance
A f orbital can hold up to three electrons
it is a weighted average,so common isotopes have a greater effect that the uncommon ones
Oxygen's atomic number is 8. This means that an oxygen atom has
electrrons
the nucleus is made of protons and neutrons and has a positive charge
x
8 protons in its nucleus
atoms of different elements could join to form compounds
amount of a substance
A f orbital can hold up to three electrons
it is a weighted average,so common isotopes have a greater effect that the uncommon ones
A mole is an SI unit bases the describes the
electrrons
the nucleus is made of protons and neutrons and has a positive charge
x
8 protons in its nucleus
atoms of different elements could join to form compounds
amount of a substance
A f orbital can hold up to three electrons
it is a weighted average,so common isotopes have a greater effect that the uncommon ones
Which of the following statements is NOT true
electrrons
the nucleus is made of protons and neutrons and has a positive charge
x
8 protons in its nucleus
atoms of different elements could join to form compounds
amount of a substance
A f orbital can hold up to three electrons
it is a weighted average,so common isotopes have a greater effect that the uncommon ones
Dalton's atomic theory stated that every element was made of atoms that could not be sub divided, atoms of the same element are alike, and
electrrons
the nucleus is made of protons and neutrons and has a positive charge
x
8 protons in its nucleus
atoms of different elements could join to form compounds
amount of a substance
A f orbital can hold up to three electrons
it is a weighted average,so common isotopes have a greater effect that the uncommon ones
Which of the following is NOT a type of orbital
electrrons
the nucleus is made of protons and neutrons and has a positive charge
x
8 protons in its nucleus
atoms of different elements could join to form compounds
amount of a substance
A f orbital can hold up to three electrons
it is a weighted average,so common isotopes have a greater effect that the uncommon ones
Which statement about an element's average atomic mass is correct
electrrons
the nucleus is made of protons and neutrons and has a positive charge
x
8 protons in its nucleus
atoms of different elements could join to form compounds
amount of a substance
A f orbital can hold up to three electrons
it is a weighted average,so common isotopes have a greater effect that the uncommon ones
The number of energy levels filled in an atom is determined by
electrrons
the nucleus is made of protons and neutrons and has a positive charge
x
8 protons in its nucleus
atoms of different elements could join to form compounds
amount of a substance
A f orbital can hold up to three electrons
it is a weighted average,so common isotopes have a greater effect that the uncommon ones
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