An atom of sodium containing 11 protons, 12 neutrons and 10 electrons
(a) is neutral.
(b) is positively charged.
(c) has a surplus of one electron.
(d) is negatively charged.

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Solution

(b) is positively charged

The atom has a surplus of one proton, which has a positive charge.

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An atom of sodium containing 11 protons, 12 neutrons and 10 electrons (a) is neutral. (b) is positively charged. (c) has a surplus of one electron. (d) is negatively charged.

(b) is positively chargedThe atom has a surplus of one proton, which has a positive charge.

An atom of sodium containing 11 protons, 12 neutrons and 10 electrons
(a) is neutral.
(b) is positively charged.
(c) has a surplus of one electron.
(d) is negatively charged.

(b) is positively charged

The atom has a surplus of one proton, which has a positive charge.