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Which of the following has a positive charge?
The number of protons it possesses
An atom of sodium has 11 protons, 11 electrons, and 12 neutrons.
4
Its atomic mass
...the same number of protons and electrons, but differing numbers of neutrons
Mg
15
proton
The mass of a single atom of a particular isotope is called which of the following?
The number of protons it possesses
An atom of sodium has 11 protons, 11 electrons, and 12 neutrons.
4
Its atomic mass
...the same number of protons and electrons, but differing numbers of neutrons
Mg
15
proton
The identity of a chemical element is determined by which of the following?
The number of protons it possesses
An atom of sodium has 11 protons, 11 electrons, and 12 neutrons.
4
Its atomic mass
...the same number of protons and electrons, but differing numbers of neutrons
Mg
15
proton
Complete the following sentence: 'Different isotopes of the same element have...'
The number of protons it possesses
An atom of sodium has 11 protons, 11 electrons, and 12 neutrons.
4
Its atomic mass
...the same number of protons and electrons, but differing numbers of neutrons
Mg
15
proton
What is the chemical symbol for magnesium?
The number of protons it possesses
An atom of sodium has 11 protons, 11 electrons, and 12 neutrons.
4
Its atomic mass
...the same number of protons and electrons, but differing numbers of neutrons
Mg
15
proton
An atom of sodium has an atomic number of 11 and a mass number of 23. Which of the following statements is correct?
The number of protons it possesses
An atom of sodium has 11 protons, 11 electrons, and 12 neutrons.
4
Its atomic mass
...the same number of protons and electrons, but differing numbers of neutrons
Mg
15
proton
what is the atomic number of Nitrogen
The number of protons it possesses
An atom of sodium has 11 protons, 11 electrons, and 12 neutrons.
4
Its atomic mass
...the same number of protons and electrons, but differing numbers of neutrons
Mg
15
proton
An atom of phosphorus has an atomic number of 15 and a mass number of 31. How many neutrons does it contain?
The number of protons it possesses
An atom of sodium has 11 protons, 11 electrons, and 12 neutrons.
4
Its atomic mass
...the same number of protons and electrons, but differing numbers of neutrons
Mg
15
proton
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