If the symbolic representation of an atom is 3X6, find its valency, name and also give the reason for the valency?

Viruses are sub-microscopic infectious agents that can infect all living organisms. A virus consists of genetic material surrounded by a protein coat. The genetic material may be present in the...

(i) The atomic number is equal to the number of protons. Therefore, the atomic number of the atom is 8.  (ii) Since the number of both electrons and protons is equal,...

By Z = 3, we mean that the atomic number of the element is 3. Its electronic configuration is 2, 1.  Hence, the valency of the element is 1 (since the...

(c) 1.........

Helium atom has 2 electrons in its outermost shell and its duplet is complete. Hence the valency is zero. 

(a) Nucleus consists of proton and neutron. Proton has positive charge whereas neutron has no charge hence net charge on nucleus is positive. Nucleus is heavy because of the presence...

Chakravarthy Bug is a super bug of Pseudomonas with multiple plasmid. They are helpful in removing oil spills.

Metal: Mercury (Hg); Non-metal: Bromine (Br)  Two metals with melting points less than 310K are Cesium (Cs) and Gallium (Ga).

You answer question (a) from the ncert textbook. b) Energy consumed per day = 1 KWh (P x t) cost for 30 days = 1 X 5 X 30 = Rs.150.00

The process is nuclear fission.  Substances are uranium, plutonium, thorium. Advantages : (i) For a given amount of fuel, the amount of energy is released extraordinarily large. (ii) Nuclear power plants can be...