It gains one electron to become Cl^-.
seven
Magnesium
Chlorine has 7 electrons in the outermost shell. It is in the 17th group. It has 7 valence electrons.
Chlorine has 7 electrons in the outermost shell. It is in the 17th group. It has 7 valence electrons.
No. Electrons are located in the electron cloud surrounding the nucleus.
Chlorine atoms have 7 outermost electrons and need to gain an electron to achieve the stability of a full valence shell.
Because it has 7 electrons in its outermost (valency) shell and getting 8 electrons there would close the shell.
Chlorine has one more electron then sulfur, so it has 1 more electron in the outer shell, 1 more valence electron. Chlorine has 5 electrons in the outermost shell and sulfur has 4.
In any atom, the valence electrons are located in the outermost shell. Chlorine has 7 valence electrons.
Chlorine has 7 valence electrons in the 3rd electron shell. Chlroine is in the third row of the periodic chart, so its 3rd shell is the valence shell, and it is in the next to last column, 7A, so it has 7 electrons in that 3rd shell.
There are 2 electrons on the outermost shell of calcium.
Sulphur has 6 electrons in its outermost shell.