Q. First ionization energy oxygen of is

View solution

Q. Ionization energies is influenced by shielding effect of

View solution

Q. In which period decrease of atomic radii is very prominent?

View solution

Q. Number of electrons in valence shell of first element of period is

View solution

Q. From top to bottom in a group of periodic table atomic radii

View solution

Q. In a group of periodic table, nuclear charge

View solution

Q. Electron affinity of sodium atom is

View solution

Q. Force of which ultimately results in difficult removal of electron is

View solution

Q. Atomic number of sodium is

View solution

Q. In group from top to bottom electron affinity

View solution

Q. Increase in atomic number is leads to a stronger force of attraction between nucleus and increasing number of

View solution

Q. Covalent radius of hydrogen is

View solution

Q. Electron affinity of chlorine is

View solution

Q. Electro negativity is related to ionization energy of element and

View solution

Q. Electron affinity of hydrogen atom is

View solution

Q. Important part of atom which is related to many physical and chemical properties is its

View solution

Q. Negative sign is given to electron affinity because energy is

View solution

Q. Force which hold atoms or ions together is

View solution

Q. Energy needed to detach an electron form potassium atom is equal to its

View solution

Q. Energy of an element which is required to remove an electron from its gaseous atom, to form an ion is

View solution