GENERAL KNOWLEDGE

GK

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The difference between atoms and ions can be summarized by the following:
A
Atoms have equal numbers of protons and electrons, whereas ions do not.
B
Atoms have equal numbers of neutrons, whereas ions do not.
C
Atoms have equal numbers of protons and neutrons, whereas ion do not
D
None of the above
Explanation: 

Detailed explanation-1: -Atoms vs. Ions. Atoms are neutral; they contain the same number of protons as electrons. By definition, an ion is an electrically charged particle produced by either removing electrons from a neutral atom to give a positive ion or adding electrons to a neutral atom to give a negative ion.

Detailed explanation-2: -An ion is a derivative of a particular atom. The main difference between an atom and an ion is that atoms have no net electrical charge whereas ions have a net electrical charge.

Detailed explanation-3: -This number is the atomic number of the element. A positively-charged ion or cation has more protons than electrons. The proton number is the atomic number of the element, while the electron number is the atomic number minus the charge. A negatively-charged ion or anion has more electrons than protons.

Detailed explanation-4: -Atoms with the same number of protons but different numbers of neutrons are called isotopes. Because the number of neutrons can vary for a given element, the mass numbers of different atoms of an element may also vary.

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