Question
Chemistry Question on Classification of elements & periodicity in properties
The correct decreasing order for metallic character is
A
Na > Mg > Be > Si > P
B
P > Si > Be > Mg > Na
C
Si > P > Be > Na > Mg
D
Si > P > Be > Na > Mg
Answer
Na > Mg > Be > Si > P
Explanation
Solution
Metallic character increases top to bottom in group and decreases left to right in a period.
Mg is from second group it will be less metallic than Na.
Be comes above Mg hence less metallic than Mg.
Si is more metallic than phosphorous.