write the number of periods and groups in the modern periodic table. How does the metallic character of Elementary vary on moving from left to right in a period and down a group? Give reason to justify answer.
Answers
Answered by
95
Periods-7
Groups-18
Metallic character...
1)Along group-increases due to increase in electropositivity of elements.
2)Along period-Decreases due to increase in electronegativity in elements.
Hope it helps...
Groups-18
Metallic character...
1)Along group-increases due to increase in electropositivity of elements.
2)Along period-Decreases due to increase in electronegativity in elements.
Hope it helps...
Hemantg111:
yeah its really helpful
thank you...
Answered by
29
TOTAL NUMBER OF PERIODS ARE 7
TOTAL NUMBER OF GROUPS ARE 15 {1A,1B,2A,2B,3A,3B,4A,4B,5A,5B,6A,6B,7A,7B,8A}
FROM LEFT TO RIGHT IN A PERIODIC TABLE THE METALLIC CHARCTER DECREASES. FROM TOP TO BOTTOM IN A GROUP THE METTALIC CHARACTER INCREASES.
TOTAL NUMBER OF GROUPS ARE 15 {1A,1B,2A,2B,3A,3B,4A,4B,5A,5B,6A,6B,7A,7B,8A}
FROM LEFT TO RIGHT IN A PERIODIC TABLE THE METALLIC CHARCTER DECREASES. FROM TOP TO BOTTOM IN A GROUP THE METTALIC CHARACTER INCREASES.
its really helpful
GROUPS ARE VERTICAL COLUMNS AND THERE ARE 18 GROUPS IN LONG FORM OF PERIODIC TABLE
THANK YOU
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