What is psychology? please tell

The study of mind and behavior.

Explanation:

Psychology is a branch of science in which we study of human mind and behavior. Wilhelm Wundt is considered as the father of psychology. Psychology provides information to the people to understand about the working mechanism of body and mind that work together. This knowledge provides help in decision-making and avoiding stressful situations.

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms

they are both synthetic elements

explanation:

d