Alana624 Alana624

03-06-2015
Chemistry

Answered

Which statement describes the relative energy of the electrons in the shells of a calcium atom?
(1) An electron in the first shell has more energy than an electron in the second shell.
(2) An electron in the first shell has the same amount of energy as an electron in the second shell.
(3) An electron in the third shell has more energy than an electron in the second shell.
(4) An electron in the third shell has less energy than an electron in the second shell.

Answer :

lulu1991 lulu1991

03-06-2015

The answer is (3) An electron in the third shell has more energy than an electron in the second shell. The energy of electron will increase when number of shell increase.

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