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1.Rank these elements according to atomic radius.
Ca Sr Rb Cs Mg
2.Rank the following ions from largest to smallest.(Radius)
Mo6+ Se2- Rb+ Br- Y3+
3.Rank these elements according to first ionization energy.
O F Ne Li C Be
4. Rank these elements according to electron affinity.
Ge F He
5.Using only a periodic table as a guide, arrange the following atoms in order of decreasing electronegativity.
Si Na F S O
Answer:
1) Cs > Rb > Sr > Ca > Mg
2) Se-2 > Br- > pb+ > Y+3 > Mo+6
3) Ne > F > O > C > Be > Li
4) F > Ge > He
5) F > O > S > Si > Na