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Oksana_A [137]
3 years ago
9

The image shows the representation of an unknown element in the periodic table. A square is shown. Inside the square twelve is w

ritten at the top righthand side. To the middle left side, Symbol is written. Below it Name is written. And further below near the bottom edge of the square, twenty-four point three zero five is written. Based on the representation, which of the following statements about the element is true? The number of neutrons in an atom of the element is 24. The combined mass of all the protons and electrons is 24.305. The combined mass of all the neutrons and electrons is 24.305. The mass number of the most common isotope of the element is 24.
Chemistry
1 answer:
avanturin [10]3 years ago
7 0

Answer:

The combined mass of all the protons and electrons is 24.305.

Explanation:

From the information given about the atom, we can see that the relative atom mass of the element is 24.305.

The relative atomic mass of an atom is the combined mass of all its isotope in proportion of their geonormal abundances. On the periodic table, this mass deals with the amount of protons and neutrons present in a given atom.

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