How many groups and periods are there in the modern periodic table? Ho

1.	How many groups and periods are there in the modern periodic table? How do the atomic size and metallic character of elements vary as we move : (a) down a group and (b) from left to right in a period
Answer» ong>ANSWER: there are 18 groups and 7 period in MODERN periodic table. as we move down a group the atomic SIZE increases and metallic character also increases. but as we from left to right it decreases and so does the metallic character

How many groups and periods are there in the modern periodic table? How do the atomic size and metallic character of elements vary as we move : (a) down a group and (b) from left to right in a period

Answer»

there are 18 groups and 7 period in MODERN periodic table. as we move down a group the atomic SIZE increases and metallic character also increases.

but as we from left to right it decreases and so does the metallic character