Why is the valency of sodium 1 and not 7?

Answer: Na has 7 electrons in its outer shell thus It is easier for Na to gain one electron rather than to lose 7 to achieve the stable octet. Sodium has 1 electron in its outermost shell. Thus, the valency of sodium is 1 not 7.

Why does sodium only have one valence electron?

Q: Why does sodium give up an electron? A: An atom of a group 1 element such as sodium has just one valence electron. It is “eager” to give up this electron in order to have a full outer energy level, because this will give it the most stable arrangement of electrons.

How is sodium valency one?

The electronic configuration of sodiumcan be written as 2, 8, 1. 2, 8, 1electrons are distributed in the shells K, L, M respectively. Therefore, valence electron in sodium is 1 and it needs to lose 1 electron from the outermost orbit to attain octet. Hence, the valency of sodium is 1.

Is sodium with one valence electron an ion?

A neutral sodium atom is likely to achieve an octet in its outermost shell by losing its one valence electron. The cation produced in this way, Na+, is called the sodium ion to distinguish it from the element. The outermost shell of the sodium ion is the second electron shell, which has eight electrons in it.

What is the Valency and valence electrons in sodium?

Valency of Sodium The electronic configuration of sodium can be written as 2, 8, 1. 2, 8, 1 electrons are distributed in the shells K, L, M respectively. Therefore, valence electron in sodium is 1 and it needs to lose 1 electron from the outermost orbit to attain octet. Hence, the valency of sodium is 1.

Is the valency of chlorine 1?

The chlorine element belongs to group 17 because it has 7 valence electron . Its valency is 1 . It can gain one electron from any other atom to become stable.

What is valency of chlorine in Naci?

The valency of chlorine is 1. Write the formula of sodium chloride. Medium.

Why the valency of copper is 1 or 2?

Solution: When an element does not have a specific valency, its valency is called variable valency. Copper has valency ‘1’ and ‘2’ that is the number of electrons lost or gained is 1 or 2 in different compounds.. For CuCl_2 the valency is two as it needs two chlorine atoms hence its name is cupric chloride.

How the valency of copper is 1 or 2?

Valency of First 30 Elements

Element	Atomic Number	Valency
Valency of Iron (Fe)	26	2, 3
Valency of Cobalt	27	3, 2
Valency of Nickel	28	2
Valency of Copper (Cu)	29	2, 1

Why are sodium and chlorine attracted to each other?

When sodium and chlorine atoms come together to form sodium chloride (NaCl), they transfer an electron. Because the sodium ion has a positive charge, and the chlorine ion has a negative charge, they are attracted to each other, and form an ionic bond.