Question

Select the correct answer for the questions below

-       A.       B.       C.       D.       E.       F.       G.    Metallic character __________ going from left to right going across a period       -       A.       B.       C.       D.       E.       F.       G.    Going down a group, metallic character ___________.       -       A.       B.       C.       D.       E.       F.       G.    Metallic oxides tend to react with acids because they are _______.       -       A.       B.       C.       D.       E.       F.       G.    Metals tend to ________electrons when they form ions.

A. basic B. gain C. lose D. acidic E. remain unchanged F. increases G. decreases

Answer 1

1. G

Metallic character decreases going from left to right across the period because moving from left to right effective nuclear charge increases that's why removal of an electron becomes difficult.

2. F.

Going down the group metallic character increases because moving from top to bottom down the group size of the atom increases hence effective nuclear charge decreases and removal of an electron becomes more easy.

3. A

Metallic oxides 10 to react with acid because they are are basic. Usually bond between metal and oxygen is ionic.

4. C.

Metals tend to lose electrons when they form ions because ionization energy of metals is very low.