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BR: Lesson 4.5 (A)

Last updated 7 months ago

5 Nsɛmmisa

1

1

1

1

1

Asemmisa {{asɛmmisaAhyɛnsode}}

1.

The oxidation number of halogens is

+1

-1

+7

-7

Asemmisa {{asɛmmisaAhyɛnsode}}

2.

This group is considered unreactive because they have a full octet:

alkali metals

transition metals

halogens

noble gases

Asemmisa {{asɛmmisaAhyɛnsode}}

3.

Which of the following is the definition of electronegativity?

The energy needed to remove an electron.

The ability to attract electrons.

The size of an atom.

How much protection valence electrons are provided by core electrons.

Asemmisa {{asɛmmisaAhyɛnsode}}

4.

Which element is the least electronegative?

H

Mg

N

F

Ne

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5.

Magnesium has a smaller atomic radius than Strontium due to

the effective nuclear charge.

shielding.

number of valence electrons.