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Match it!
Match it! Select the correct answer from the pull down...Good luck!
The identity of a chemical element is determined by which of the following?
proton
the same number of neutrons.
the same number of electrons
...the same number of protons and electrons, but differing numbers of neutrons
The number of protons it possesses
An atom of sodium has 11 protons, 11 electrons, and 12 neutrons.
Mg
15
What is the chemical symbol for magnesium?
proton
the same number of neutrons.
the same number of electrons
...the same number of protons and electrons, but differing numbers of neutrons
The number of protons it possesses
An atom of sodium has 11 protons, 11 electrons, and 12 neutrons.
Mg
15
An atom of phosphorus has an atomic number of 15 and a mass number of 31. How many neutrons does it contain?
proton
the same number of neutrons.
the same number of electrons
...the same number of protons and electrons, but differing numbers of neutrons
The number of protons it possesses
An atom of sodium has 11 protons, 11 electrons, and 12 neutrons.
Mg
15
The neutral atoms of all of the isotopes of the same element have
proton
the same number of neutrons.
the same number of electrons
...the same number of protons and electrons, but differing numbers of neutrons
The number of protons it possesses
An atom of sodium has 11 protons, 11 electrons, and 12 neutrons.
Mg
15
Which of the following has a positive charge?
proton
the same number of neutrons.
the same number of electrons
...the same number of protons and electrons, but differing numbers of neutrons
The number of protons it possesses
An atom of sodium has 11 protons, 11 electrons, and 12 neutrons.
Mg
15
An atom of sodium has an atomic number of 11 and a mass number of 23. Which of the following statements is correct?
proton
the same number of neutrons.
the same number of electrons
...the same number of protons and electrons, but differing numbers of neutrons
The number of protons it possesses
An atom of sodium has 11 protons, 11 electrons, and 12 neutrons.
Mg
15
Consider the species 72Zn, 75As and 74Ge. These species have
proton
the same number of neutrons.
the same number of electrons
...the same number of protons and electrons, but differing numbers of neutrons
The number of protons it possesses
An atom of sodium has 11 protons, 11 electrons, and 12 neutrons.
Mg
15
Complete the following sentence: 'Different isotopes of the same element have...'
proton
the same number of neutrons.
the same number of electrons
...the same number of protons and electrons, but differing numbers of neutrons
The number of protons it possesses
An atom of sodium has 11 protons, 11 electrons, and 12 neutrons.
Mg
15
Check it!