3 years ago

How can we use patterns on the periodic table to predict an element’s structure and reactivity?

1 answer:

4 0

Answer:

The number of electrons in the outermost shell of an atom determines its reactivity. Noble gases have low reactivity because they have full electron shells. Halogens are highly reactive because they readily gain an electron to fill their outermost shell.

Explanation:

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Answer:

I believe the answer is a

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You give a sample containing .90 moles of a substance

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When a metal and a nonmetal exchange electrons to make a cation and an anion, respectively, they can form an ionic compound. The

mario62 [17]

Answer:

Generally, we know that ionic compounds are formed by reaction of metals and non metals and non metals form a covalent or non ionic bonds.

<u>IONIC COMPOUDS</u>

Iron and chlorine (FeCl2) , ( FeCl3)
Chlorine and Lithium (LiCl)
oxygen and calcium ( CaO)
Potassium and Sulphur ( K2S)

<u>NON IONIC COMPOUNDS</u>

Potassium and Calcium (covalent bond)
Sulphur and Bromine (covalent bond)

Explanation:

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3 years ago