Question

Or we can say that atoms of different elements with the same number of occupied shells are placed in
the same period. Na, Mg, Al, Si P, S, Cl and Ar belong to the third Period of the modern periodic table,
since the electrons in the atom of these elements are filled in kLand M shell. Write the electronic
configuration of these elements and confirm the above statement. Each period marks a new electronic
shells getting filled.​

Answer 1

Answer:

Like an echo in the forest

The day will come back around

As if nothing happened

Yeah, life goes on

Like an arrow in the blue sky

Another day flying by

On my pillow, on my table

Yeah, life goes on

Like this again

Answer 2

The Group 2 alkaline earth metals include Beryllium, Magnesium, Calcium, Barium, Strontium and Radium and are soft, silver metals that are less metallic in character than the Group 1 Alkali Metals. Although many characteristics are common throughout the group, the heavier metals such as Ca, Sr, Ba, and Ra are almost as reactive as the Group 1 Alkali Metals. All the elements in Group 2 have two electrons in their valence shells, giving them an oxidation state of +2.