Answer to Question #324724 in Biology for Lebo

Question

Give the name, atomic number and number of valence electrons for each of the following atoms: He,B,F,Mg,Si,Cl as well as Ar

Answer 1

He - Helium, atomic number of helium is two. That is, the total number of electrons in the helium atom is two.

B - Boron, Boron has 3 valence electrons. Boron has an atomic number 5.

F - Fluoride, Boron has an atomic number 9, It has 5 valence electrons in the 2p level.

Mg - Magnesium, The atomic number of magnesium(Mg) is 12. Magnesium has 2 valence electrons.

Si - Silica, The atomic number of magnesium (Mg) is 14. Silicon has 4 valence electrons.

Cl - Chlorine, Chlorine has an atomic number of 17. Chlorine atom has seven valence electrons.

Ar - Argon, Chlorine has an atomic number of 18. The number of valence electrons in the Argon atom is 8.