What is the first step to determine the sequence of filling electron configurations of an element? Find the elements location on the periodic table.
Use a diagonal diagram.
Add up all the exponents.
Add up all the coefficients.

b. acid is the correct answer @jayxboof all social media

acid : acids are those which accepts an electron-pairs.

base : bases are those which donates ab electron-pairs.

alkali : it is a base that dissolves in water. it is basically a base and the ph greater than 7.

hydroxide ion : it is a poly-atomic ion which is negatively charged.

the answer is c.the valence of the atoms combine .

d

explanation: