Shadow Power 24

At normal pressure, the temperature at which a liquid matter turns into a gaseous state is called the boiling point of that liquid. For example, the Melting point of NaCl is 1465°C.

The number of protons in the nucleus of the atom of an element is called the atomic number of those elements. We know that protons are present in the nucleus of an atom. It is the number of protons of an atom, which determines its atomic number. It is denoted by ‘Z’. All atoms of an element have the … Read more

The abbreviated form of English or the Lain name of an element is called its symbol.

The sign denoting excessive harmful radioactive emission is called trefoil.

Organic compounds made of hydrogen and carbon are known as hydrocarbon.

Atoms of the same elements with different mass numbers are called isotope of each other.

If the elements are arranged according to their atomic mass then characteristic similarities can be seen in every eighth element.

Flux is added to the ores to remove mineral impurities. At high-temperature metallic oxides of ores reduce and be free as metal and flux join with impurities and form metal slag.