Plz help ......Na+ has completely filled k and L shells . explain

Chemistry

1 answer:

inessss [21]2 years ago

5 0

Explanation:

Na represents the neutral element; Sodium. Because of it's atomic number of 11, It has 11 electrons.

Na+ on the other hand represents a cation. The sodium ion has lost an electron, hence the total number of electrons it has = 10.

The K and L shells each have maximum number of electrons they can accommodate. This is given by the formular; 2n^2

K shell = 2 (1)^2 = 2 electrons

L shell = 2 (2)^2 = 8 electrons

Seeing as Na+ has 10 electrons, It completely filled the K and L shells ( 2 + 8 = 10 )

You might be interested in

ANSWER AS SOON AS POSSIBLE PLEASE!!!! Which type of water represents the largest percentage of earths water?

antoniya [11.8K]

Answer:

im pretty sure its groundwater just read this and see the answer

Explanation:

The ocean holds about 97 percent of the Earth's water; the remaining three percent is found in glaciers and ice, below the ground, in rivers and lakes. Of the world's total water supply of about 332 million cubic miles of water, about 97 percent is found in the ocean.

5 0

2 years ago

Read 2 more answers

True or false 12,785.000 has five significant digits.

Yuki888 [10]

Answer:

True

Explanation:

Significant digits include non-zero digits (unless the zero is between two non-zero numbers)

In 12,785.000, there are 5 non-zero digits:

1 2 7 8 5

4 0