Atomic StructureHard

Question

When lithium vapours were filled in the discharge tube for anode rays experiment, the anode rays were found to contain only Li+ ions (A = 7, Z = 3). Therefore, each particle of anode contains

Options

A.1 proton only.
B.3 protons and 4 neutrons only.
C.3 protons, 4 neutrons and 2 electrons.
D.3 protons, 3 neutrons and 3 electrons.

Solution

Number of protons = Z = 3

Number of electrons = 3 – 1 = 2

Number of neutrons = A – Z = 4

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