Q15 of 64 Page 110

The electron distribution in an aluminum atom is:

The atomic number of aluminum is 13.


Hence, the electron distribution in an aluminum atom would be 2, 8, 3.


So, A is the correct option.

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13

The first model of an atom was given by:

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An atom with 3 protons and 4 neutrons will have a valency of:

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The nucleus of hydrogen atom is known as: