A particle that contains 9 protons, 10 neutrons and 10 electrons is

  • A positive ion
  • B neutral atom of a metal
  • C neutral atom of a non-metal
  • D negative ion
jamb 2017chemistry

The correct answer is D. negative ion

protons = 9

neutrons = 10

electrons = 10

Electronic configuration = 2, 8

Ground state Electronic configuration=2, 7

It means that the atom has gained an electron thereby making it have a negative ion.

When an atom donates an electron, it becomes positively charged.

When an atom accepts an electron, it becomes negatively charged

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