Question

write the number of columns in themodern periodic table and what are these coloums called ​

Answer 1

There are 18 vertical columns in the modern periodic table and they are called as " groups " .

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Answer 2

Heya❤

$the \: columns \: in \: the \: modern \: peiodic \: table \: are \: \\ called \: groups... \\ \\ \\ there \: are \: 18 \: groups \: in \: the \: modern \: periodic \: \\ table..$

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