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Varvara68 [4.7K]
3 years ago
9

21. State the relationship, if any, between the atoms that you drew in problems 17-20.​ please help

Chemistry
1 answer:
Ne4ueva [31]3 years ago
4 0

⁵He and ⁴He are isotopes

F¹⁻ is the negative ion of F

Explanation:

⁵He and ⁴He are isotopes because they have different number of neutrons.

⁵He have 3 neutrons

⁴He have 2 neutrons

F¹⁻ is the negative ion of F, because it has the same number of protons but different number of electrons.

F¹⁻ have 9 protons and 10 electrons, so it have a negative 1 charge

F have 9 protons and 9 electrons so it is neutral

Learn more about:

isotops

brainly.com/question/375570

#learnwithBrainly

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Answer:

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Explanation:

First we convert 27 °C to K:

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