Which of the following would cause an atom to have a positive electric charge? A. having more protons than electrons B. having more electrons than protons C. having more electrons than neutrons D. having more neutrons than protons and electrons

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Physics

Barr

1 October, 01:42

Which of the following would cause an atom to have a positive electric charge? A. having more protons than electrons B. having more electrons than protons C. having more electrons than neutrons D. having more neutrons than protons and electrons

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Phoenix Stone · Answer 1

In neutral state the atom got an equal number of protons (+) and electrons (-). If you lose and electron then you will have 1 more proton than electron, so you have a +, but if you gained an electron, then you'd have one more electron than protons, so you'd get a -.

Fx: carbon has 6 protons and 6 electrons. If carbon loses an electron, then the carbon atom would have 6 protons and only 5 electrons, then you'd have 6 + and 5-, which is 1 more plus and minuses, so you have C+.

If Carbon gained an electron, then you'd have 6 + and 7-, which is 1 more minus than pluses, so you'd have C-.

Last example, if you gained 2 electrons, then you'd have 6 + and 8-, which is 2 more minuses than pluses, which would give you an C - - (Also known as: C2-)