Question

How many particles are represented by each of the symbols Li, P4, Cu, O2, Cl2, and He?
what particle in the atom is involved in a chemical reaction?
Define ionic bond and covalent bond. Explain with diagrams and examples.

Answer 1

Answer:

In ionic compounds, electrons are transferred between atoms of different elements to form ions. But this is not the only way that compounds can be formed. Atoms can also make chemical bonds by sharing electrons equally between each other. Such bonds are called covalent bonds. Covalent bonds are formed between two atoms when both have similar tendencies to attract electrons to themselves (i.e., when both atoms have identical or fairly similar ionization energies and electron affinities). For example, two hydrogen atoms bond covalently to form an H2 molecule; each hydrogen atom in the H2 molecule has two electrons stabilizing it, giving each atom the same number of valence electrons as the noble gas He.

Answer 2

$5 \: particles \:$