# Does chlorine lose 7 valence electrons?

## Does chlorine lose 7 valence electrons?

Since a full shell of valence electrons (8) is the most stable configuration, chlorine tends not to lose electrons but to gain one electron to fill the final 3p orbital and give it 8 valence electrons like its neighboring noble gas argon.

Does CL have 8 valence electrons?

Why? Referring to the octet rule, atoms attempt to get a noble gas electron configuration, which is eight valence electrons. Sodium has one valence electron, so giving it up would result in the same electron configuration as neon. Chlorine has seven valence electrons, so if it takes one it will have eight (an octet).

### Why does chlorine only have 7 valence electrons?

Valence electrons are the number of electrons present in the outermost shell of an atom. The last shell of a chlorine atom has 7 electrons in it. Therefore, there are 7 valence electrons in an chlorine atom.

What family has 5 valence electrons?

The elements of the group 15 (column) VA of the periodic table all have electron configurations of s2p3, giving them five valence electrons. These elements include Nitrogen (N), Phosphorus (P), Arsenic (As), Antimony (Sb), and Bismuth (Bi).

#### What is the valence of CL?

Examples

Compound Formula Valence
Chlorine Cl2 Cl = 1
Hydrogen peroxide H2O2 H = 1 O = 2
Acetylene C2H2 C = 4 H = 1
Mercury(I) chloride Hg2Cl2 Hg = 2 Cl = 1

What is the atomic number of CL?

17
Chlorine/Atomic number

## What family has 8 valence electrons?

Noble Gases
Noble Gases The Group 18 elements are the noble gases. Atoms of the noble gases have 8 valence electrons, except for helium, which has 2. Atoms with 8 valence electrons (or 2, in the case of helium) are stable. They are unlikely to gain or lose electrons or to share electrons with other atoms.

What element has 4 valence electrons and 5 electron shells?

Electrons

Atomic Number Element Energy Levels or “shells”
4 Beryllium (Be) 2
5 Boron (B) 3
6 Carbon (C) 4
7 Nitrogen (N) 5

### Does chlorine have 1 valence electrons?

A: An atom of a group 17 element such as chlorine has seven valence electrons. It is “eager” to gain an extra electron to fill its outer energy level and gain stability.

How many electrons does chlorine have in its outer shell?

seven electrons
The Group 7 elements – fluorine (F), chlorine (Cl), bromine (Br), iodine (I) and astatine (At) – have seven electrons in the outer shell.

#### How many core electrons are in chlorine?

There are 10 core electrons in a chlorine atom . We determine this by first identifying the number of electrons in a neutral chlorine atom. As chlorine has an atomic number of 17, it will have 17 protons in the nucleus which will be balanced by having 17 electrons. Next, we find the number of valence electrons in a chlorine atom.

How many energy shells does chlorine have?

Chlorine has 17 electrons, two in its innermost shell, eight in the next shell and seven in the third subshells that hold up to eight electrons. Sodium and chlorine react strongly to form sodium chloride or table salt, a stable compound.

## What is the atomic mass of chlorine?

The atomic mass of the element Chlorine is approximately 35.453 atomic mass unit

What is a valence charge?

Charge number or valence of an ion is the coefficient that, when multiplied by the elementary charge, gives the ion’s charge.