1) effective nuclear charge and screening effect are the factors of a) atomic radius b) electronegativity c) the first ionisation energy d) ionic radius e) negative ion f) the second ionisation enrgy 2) positive ion also known as a) anion b) atom c) molecule d) ion e) cation f) gas 3) atomic radius is the factor of effecting? a) the first ionisation energy b) element in group c) electronegative d) anomalous e) ionic radius f) ionisation energy 4) when down a group, principle quantum number is a) decrease b) same c) increase 5) across a period, atomic size smaller while atomic radius is a) decrease b) increase c) bigger d) smaller e) less f) more 6) row in periodic table is a a) period b) elements c) noble gas d) metal e) group f) non metal 7) how much column that have in periodic table a) 18 b) 10 c) 7 d) 2 e) 6 8) 'valence electron attracted weaker and further away from the nucleus'   a) ionic radius b) atomic radius c) ionisation energy d) the first ionisation energy e) electronegativity f) shielding effect 9) is the energy required to remove one electron from a positive gaseous ion in its ground state a) screening effect b) the second ionisation energy c) electronegativity d) effective nuclear charge e) the first ionisation energy f) ionic radius 10) is the radius of monoatomic ion in ionic crystal structure a) anion b) screening effect c) removed electron d) gains electron e) ionic radius f) effective nuclear charge

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