The atomic mass of an element whose atoms consist of seven protons, eight neutrons, and seven electrons is _____?

2 answers:

6 0

The atomic mass is C. 15

Atomic mass = P + N = 7+8 = 15

The atomic mass of an element is defined as the sum of the protons and neutrons. On the other hand, the atomic number of a neutral element is equivalent to the number of protons or electrons. This is because a neutral element should have equal number of protons and electrons.

MrRissso [65]3 years ago

3 0

Answer:

Explanation:

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<h3>Where is the plot of distance?</h3>

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On a distance-time graph, an object's motion is indicated by a sloping line. The slope or gradient of the line in a distance-time graph is equal to the object's speed. The object is travelling more quickly the steeper the line is (and the bigger the gradient).

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