How many dots are shown in the electron dot diagram for calcium, in group ii and period 4 with 20 protons and 20 electrons?

Explanation:

It is known that dots present around the symbol of an element denotes the number of valence electrons present in the element.

For example, atomic number of calcium is 20 as it has 20 protons. So, its electronic distribution is as 2, 8, 8, 2.

Hence, it means that an atom of calcium contains 2 valence electrons and in order to attain stability it readily loses those two electrons.

Therefore, we can conclude that an electron dot diagram for calcium will have 2 dots around the symbol Ca.

sea breeze

explanation:

cool air is going towards land allowing for the land to be cooler, the hotter air gets pushed away from the land.

idk what the options are but

these is a strong electrostatic attraction between the ions hence a lot of energy is needed to overcome this attraction

this is why the boiling points are so high