please answer it.........
Attachments:
Answers
Answered by
0
Answer:
In a modern periodic table, the valency when it moves from left to right, doesn't change.. it remains the same whereas in a group from up to down, it varies, that is it decreases..
Answered by
1
Answer:
the modern periodic table has 7 periods.
the valency increases first and then it decreases in a period or moving left to right.
metallic character decreases across a period.
valency remains same down the group.
atomic size increases down the group.
........♥now hope u got the answer for ur question...... hope I helped u charan Sai kumar :csk. ♥..........hve Gud....
Similar questions