Question

An atom of element X has one more shell of electrons than an atom of beryllium, but it has one less valence electron than beryllium. Which element is element X?

sodium (Na)
boron (B)
magnesium (Mg)
lithium (Li)
GPT 3.5
The element X in this case would be boron (B).

Beryllium (Be) has 4 electrons and 2 valence electrons, while boron (B) has 5 electrons and 3 valence electrons. Therefore, element X, which has one more shell of electrons than beryllium but one less valence electron, is boron (B).

Related Questions

The molecule beryllium chloride has one beryllium atom, a metal, and two chlorine atoms, nonmetals.... How do valence electrons impact the type of bonds an atom makes?(1 point)ResponsesAn atom wants an e... Changing the number of __________ would change an atom into an atom of a different element. View Av... Which of the following explains why the valency of carbon is 4 even though it has 6 electrons? sh...