phosphorus atomic number

(i) It is a soft waxy solid with garlic smell. (ii) It is poisonous in nature. (iii) It turns yellowish on exposure to light. For this reason, it is also called yellow phosphorus. (iv) It is not soluble in water but soluble in carbon disulphide. (v) It undergoes spontaneous combustion in..

Atom is the smallest particle of an element, which may or may not have independent existence. It is made up of subatomic particles like electrons, protons and neutrons. Atoms of one type of element differ from those of the other due to different number of subatomic pa..

It is prepared by heating white phosphorus to about 470 K under high pressure of 1200 atmospheres in inert atmosphere. (i) It has metallic lustre. (ii) It is most inactive form of phosphorus. (iii) It has a layer type structure in which each layer consists of p..

Element Symbol Atomic Number Relative Atomic mass Actinium Ac 89 227 Aluminium Al 13 27 Americium Am 95 243 Antimony Sb 51 122 Argon Ar 19 40 Arsenic As 38 75 Astatine At 95 210 ..

. Examples: CO 2 , H 2 O, SO 3 , HCl Depending upon the number of atoms in one molecule of the element it can be classified a..

The nuclei of atoms is made up of protons and neutrons. These two components of the nucleus are referred to as nucleons. The electrons occupy the space outside the nucleus. Since an atom is electrically neutral, the number of protons in the nucleus is exactly equal to ..

This is the number of protons present in the nucleus or the number of electrons present outside the nucleus. It is denoted by the letter Z. Atomic number (Z) = Nuclear charge or number of protons (p) = Number of electrons ..

The number of protons or the number of electrons in an atom in its normal state is called the atomic number and is denoted by Z. The nucleus of every element contains Z protons and some number of neutron..

Atomicity of a Molecule of an Element - The number of atoms, which constitute one molecule of an element, is called its atomicity. Phosphorus: P 4 - 4 atomicity Sulphur: S 8 - 8 atomicity Oxygen: O 2 - 2 atomicity Recen..

While studying the periodic table, it will be noticed that with the increase in the atomic number, there is an increase in atomic mass as well (with some exceptions). Usually an element with high atomic number has high atomic mass as..