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

Q. First ionization energy of potassium is

View solution

Q. Ionization energy which is required to remove third electron after removal of second electron is

View solution

Q. Index character of ionization energy is

View solution

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

View solution

Q. From up to down in a group of periodic table proton number

View solution

Q. Second ionization energy of Mg is

View solution

Q. Molecule for which bonding pair of electrons is equally shared between atoms is

View solution

Q. K and Cl ions arrange themselves to form a

View solution