Write the number of periods and groups in the modern periodic table how does the metallic character of an element vary on moving from left to right period in period and down a group give reason to justify
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In modern periodic table, there are 18 periods and 7 groups.
As we move from right to left, metallic characteristics start decreasing and non-metallic characters start increasing.
On moving from top to bottom, reactivity of metals increases.
Hope it helps.
Please mark my answer as the brainliest :-)
As we move from right to left, metallic characteristics start decreasing and non-metallic characters start increasing.
On moving from top to bottom, reactivity of metals increases.
Hope it helps.
Please mark my answer as the brainliest :-)
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