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the number of electrons in cl- ion is1 19 2 20 3 18 4 35ans
which of the following are isoelectronic and isostructuralno-3 co2-3clo-3 so31 no-3 co2-3
which one of the following groupings represents a collection of isoelectronic species1 na ca2 mg2 2 n3 f- na3 be al3
the nucleus of tritium contains1 1 proton 1 neutron 2 1 proton 3
an element have atomic weight 40 and its electronic configuration is 1s2 2s2 2p6 3s2 3p6 then its atomic number and number of neutrons will be1 18
iso-electronic species is1 f-o-2 2 f-
the charge of an electron is -16 x10-19c the value of free charge on li ion will be1 36x 10-19c
which of the following is not isoelectronic1 na 2
the atomic number of an element is 35 and mass number is 81 the number of electrons in the outer most shell is1 7 2
the atomic number of an element is 17 the number of orbitals containing electron pairs in its valence shell is1 eight
the nitride ion in lithium nitride is composed of1 7 protons 10 electrons 2 10 protons 10 electrons 3 7 protons 7 protons4
if molecular mass and atomic mass of sulphur are 256 and 32 respectively its atomicity is1 2 2 8
nitrogen atom has an atomic number of 7 and oxygen has an atomic number 8 the total number of electrons in a nitrate ion will be1
an isostere is1 no-2 and o32 no-2 and po3-4 3 co2 n2o no-3
be2 is isoelectronic with1 mg2 2 na
number of protons neutrons and electrons in the element 23189 y is1 89 231 89 2 89 89 242 3 89 142 89 4
the number of electrons and neutrons of an element is 18 and 20 respectively its mass number is1 17 2
the number of electrons in 4019 k -1 is1 19 2 20 318 440ans
which one of the following is not isoelectronic with o2-1 n-3 2
nuclei tend to have more neutrons than protons at high mass numbers because1 neutrons are neutral particles 2 neutrons have more mass than
in neutral atom which particles are equivalent1 p e
number of unpaired electrons in inert gas is1 zero 2 8 3
the charge on the atom containing 17 protons 18 neutrons and 18 electrons is1 1
which of the following are isoelectronic species i ch3 ii-nh2 iii- nh4 iv-nh31 i ii
the mass number of an anion x3- is 14 if there are ten electrons in the anion the number of neutrons in the nucleus of atom x2 of the