GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the atomic number for an element with three protons?
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2
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1
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3
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6
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Explanation:
Detailed explanation-1: -A lithium atom contains 3 protons in its nucleus irrespective of the number of neutrons or electrons. Notice that because the lithium atom always has 3 protons, the atomic number for lithium is always 3.
Detailed explanation-2: -A lithium nucleus has three protons and three neutrons.
Detailed explanation-3: -An atom with three protons is a lithium atom, an atom with five protons is a boron atom, an atom with six protons is a carbon atom . . . the list goes on.
Detailed explanation-4: -It is Lithium, Li. Q. The atom of an element X has 7 electrons in its M shell.
There is 1 question to complete.