Q. Number of electrons (e-) in phosphorus (P) is 15. valence electrons shall be

View solution

Q. In periodic table, valence electrons are indicated by

View solution

Q. Elements with 4-7 valence electrons are referred to as

View solution

Q. If nucleon (mass) and proton (atomic) number is 40 and 20 respectively, element is

View solution

Q. If number of protons and electrons are 8 respectively, valence electrons are

View solution

Q. Elements in same period may have

View solution

Q. Number of protons in sodium are 11. number of electrons in outermost shell will be

View solution

Q. Elements with 1-3 valence electrons are called

View solution

Q. In periodic table, non-metals are found in the

View solution

Q. Elements with full outermost shells are

View solution

Q. In deuterium, number of neutrons are

View solution

Q. In an atom, number of protons and neutrons are added to obtain

View solution

Q. If proton number is 19, electron configuration will be

View solution

Q. If nucleon number of potassium is 39, number of neutrons will be

View solution

Q. First element in periodic table to have 8 valence electrons is

View solution

Q. All are noble gases except

View solution

Q. Valence electrons refer to the

View solution

Q. Chemical properties of an element are largely derived through

View solution

Q. Elements and their isotopes have

View solution

Q. First element in periodic table to have 8 valence electrons in third shell is

View solution