Question

If Z=3 , what would be the valency of the element? Also name the element. ​

Answer 1

It stands for atomic number

the element is : lithium

valency: +1

Answer 2

Atomic number:

The number of protons in one atom of an element is known as the atomic number of that element.

The atomic number of an element= number of protons in one atom of an element

The atomic number of an element is equal to the number of electrons in a neutral atom of that element

The atomic number of an element tells us 2 things:

1. It tells us the number of protons in one atom of the element.

2. It tells us the number of electrons in 1 normal atom of the element.

The atomic number of an element is denoted by the letter Z.

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Solution:

The symbol Z stands for the atomic number of an element.

Here Z= 3, means that the atomic number of this element is 3.

The electronic configuration of the element is 2,1.

It has one electron in its outermost shell. So in this element, one atom of this element can lose 1 electron to achieve the nearest inert gas electron configuration.

Hence, the valency of the element is 1.

The element having atomic number 3 is lithium.

Hope this will help you!!!!!!!1