(A) Electrons
(B) Protons
(C) Neutrons
(D) Mesons
The ionization energy of an atom relative to the binding energy of its nucleus is?
(A) Same
(B) Smaller
(C) Greater
(D) Sometimes smaller and sometimes greater
Relative to the sum of the masses of its constituent nucleons, tha mass of a neclous is?
(A) Greater
(B) Smaller
(C) Same
(D) Sometimes smaller and sometimes greater
All of the ions that pass through crossed electric and magnetic fields without deflection have?
(A) Speed
(B) Energy
(C) Momentum
(D) Mass
Water is an excellent solvent because its molecules are?
(A) Neutral
(B) Polar
(C) Covalent
(D) Non Polar
A molecule whose charge distribution is not perfectly symmetrical is called?
(A) An electrolyte
(B) A polar molecule
(C) A non polar molecule
(D) An organic molecule
There are no expected lines absent from the spectra of?
(A) The halogens
(B) The alkali metals
(C) Hydrogen
(D) The inert gas
Two electron in a hellium atom?
(A) Occupy different sub shell
(B) Have parallel spin
(C) Occupy different shell
(D) Have opposite spin