Some nitrogen atoms have seven neutrons and some have eight neutrons. These two

Question

Some nitrogen atoms have seven neutrons and some have eight neutrons. These two forms of nitrogen are:

(a) ions of each other

(b) phases of each other

(c) isotopes of each other

If we represent the solar system on a scale that allows you to walk from the Sun to Pluto in a few minutes, then:

(a) the planets would be the size of basketballs and the nearest stars would be a few miles away

(b) the planets would be marble-size or smaller and the nearest stars would be thousands of miles away

(c) the planets would be microscopic and the stars would-be light-years away.

What are the answers for both questions?

Explanation / Answer

(c) isotopes of each other

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