Answered

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The atoms of certain element each contain 36 protons and 8 valence electrons. Which statement correctly identifies this element and describes its chmical reactivity?

Sagot :

samueladesida43

Answer:

This question lacks options, the options are:

A The element is krypton, Kr, and it is not very reactive.

B The element is chlorine, Cl, and it is highly reactive.

C The element is krypton, Kr, and it is highly reactive.

D The element is chlorine, Cl, and it is not very reactive.

The correct answer is A

Explanation:

An atom is identified by its atomic number, which is the number of protons it contains. In this question, it is said that the atoms of a certain element each contain 36 protons. Using the periodic table, the element with atomic no. 36 is KRYPTON.

Also, Krypton posseses 8 valence electrons in its outer shell. In accordance to the octet rule, Krypton has no further need to engage in any chemical reaction to fill its electron shell because it is already filled (8 valence electrons). This accounts for the reason Krypton belongs to "Noble gases" and very unreactive.

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