Quiz 1 - ELECTRON CONFIGURATION AN- Chemistry - Grade 10- W5

An element that has the electron configuration [Ne]3s²3p⁵ is in Period

• 2

• 3

• 5

• 7

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An element that has the electron configuration [Ne]3s²3p⁵ is in Group

• 2

• 5

• 7

• 17

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Elements in the s and p blocks of the periodic table are called

• alloys.

• main-group elements.

• metals

• transition metals.

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Elements in Group 18 have

• very low reactivity.

• good conductivity.

• very high reactivity.

• metallic character.

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Nonmetallic elements in Group 17 that react with most metals to form salts are

• alkali metals.

• halogens.

• lanthanides.

• noble gases.

The outer-level electron configuration of a neutral alkaline-earth metal atom consists of

• one electron in the s orbital.

• two electrons in the s orbital.

• one electron in the p orbital.

• two electrons in the p orbital.

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In nature the alkali metals are found only in compounds because they

• have small atoms.

• are very reactive elements.

• are rare elements.

• each have a stable octet.

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To which group does hydrogen belong?

• Group 1

• Group 2

• Group 18

• None of the above

An element found in groups 3-12 of the periodic table is classified as a(n)

• alkali metal.

• alloy.

• transition metal.

• actinide.

In which group is an element that has an outer-level electron configuration consisting of one electron in the d orbital and two electrons in the ns orbital?

• Group 1

• Group 2

• Group 3

• Group 5

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