Multiple Choice
A Se ion has a mass number of 75 and a charge of -2. Determine the number of neutrons, protons, and electrons in this ion.
2. Atoms & Elements
Subatomic Particles
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If the charge (q) of an electron is -1, what is the charge (q) of a proton?
A
+2
B
0
C
+1
D
-1
Verified step by step guidance1
Understand that in chemistry, the charge of subatomic particles is a fundamental concept. Electrons and protons are two types of subatomic particles with specific charges.
Recall that an electron has a charge of \(-1\) elementary charge units. This is a standard value in chemistry and physics.
Know that a proton, which is another subatomic particle found in the nucleus of an atom, has a charge that is equal in magnitude but opposite in sign to that of an electron.
Therefore, the charge of a proton is \(+1\) elementary charge units. This is because protons and electrons balance each other out in a neutral atom.
Conclude that the charge of a proton is \(+1\), which is the opposite of the charge of an electron, ensuring electrical neutrality in atoms.
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