Advertisements
Advertisements
प्रश्न
Multiple Choice Questions
number of valence electrons present in magnesium is
विकल्प
two
three
four
five
Advertisements
उत्तर
two
APPEARS IN
संबंधित प्रश्न
Write true or false for the following statement
The central pad of the atom is called nucleus.
Give the following a suitable word/phrase.
The electrons present in the outermost shell.
Give the following a suitable word/phrase.
The sum of the number of protons and neutrons of an atom.
Give the following a suitable word/phrase.
The smallest unit of an element which takes part in a chemical reaction.
Tick the most appropriate answer
β-particles are actually a stream of
- protons
- electrons
- neutrons
- none of these
Compare an electron, a proton and a neutron in respect of their relative masses and charges.
State the location of electrons, protons and neutrons in an atom.
Name the sub-atomic particle whose charge is 0.
Define the term Nucleons.
Explain in brief – Goldstein’s experiment which led to the discovery of the proton.
