Subjects
Science TNSB Mentoring
Class 10 Crash course
Periodic classification of elements
Periodic trends and metallurgy

2. Classification of elements by groups and periods

Question:

3 m.

Choose the best answer:

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

\(7\) periods, \(18\) groups
\(7\) periods, \(16\) groups
\(8\) periods, \(17\) groups
\(6\) periods, \(18\) groups

2. According to the modern periodic table, transition metals are placed in.

group \(2\) to \(12\)
group \(8\) to \(12\)
All the above
group \(3\) to \(12\)

3. Nitrogen family found in the modern periodic table.

All the above
group \(10\)
group \(13\)
group \(15\)

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