Scientists analysing a rock sample from a meteorite found atoms with 6 protons and 8 neutrons. Which statement correctly identifies this atom?

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Question

Scientists analysing a rock sample from a meteorite found atoms with 6 protons and 8 neutrons. Which statement correctly identifies this atom?

Accepted Answer

It is carbon-14 — Award 1 mark for identifying carbon-14 (6 protons = carbon, mass number = 6 + 8 = 14). A is incorrect — nitrogen has 7 protons. C is incorrect — oxygen has 8 protons. D is incorrect — the mass number is 14, not 8; the 8 represents neutrons only.

Answer

It is nitrogen-14

Answer

It is oxygen-14

Answer

It is carbon-14

Answer

It is carbon-8

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