Periodicity Flashcards
1
Q
which elements of period 3 are found in the s block?
Na Mg Al Si P S Cl Ar
A
Na and Mg
2
Q
what is the electronic configuration of sodium?
A
1s2 2s2 2p6 3s1
3
Q
which element in period 3 has the largest atomic radius?
A
Na atomic radius decreases as you move across a period
4
Q
which element in period 3 has the highest melting point and why?
A
Si (silicon)
macromolecular with strong covalent bonds
