An atom has 18 protons and 8 valence electrons which statement would best identify this element

Chemistry

2 answers:

lorasvet [3.4K]1 year ago

7 0

Argon has 18 protons which identifies the element and is in group Noble Gases which has 8 valence electrons.

fgiga [73]1 year ago

3 0

It would argon because the atomic number is the same as the protons.

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<u>Answer:</u> The expression for $K_p$ is written below.

<u>Explanation:</u>

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For a general chemical reaction:

$aA+bB\rightleftharpoons cC+dD$