An element has an electron configuration of [Ne]3s23p6. Which of the following is true? The element...

An element has an electron configuration of [Ne]3s23p6. Which of the following is true?

The element is a noble gas.

It has 8 valence electrons.

The element is Kr.

The element is chemically inert.

Expert Solution

[Ne]3s23p6.

Ne = 10

10 + 2 + 6 = 18 electrons

Ar = 18

so the element is Argon

element is noble gas = correct

it has 8 valence electrons = correct

the element is Kr = wrong

the element is chemically inert = correct

queen_honey_blossom answered 2 years ago

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