No. of Elements in a Period

Q.

State the number of elements in period 1 period 2 and period 3 of the periodic table

Q. Which are the short periods of the modern periodic table?

1. Period 2
2. Period 7
3. Period 3
4. Period 1

Q.

Name the elements in period 1.

Q. The long periods of the periodic table are

1. Period 7
2. Period 4
3. Period 3
4. Period 5

Q.

Fill in the blanks with suitable words.

There are______elements in the longest period of modern periodic table..

Q.

Period 5 of the periodic table contains _____elements.

Q.

How many elements are there in period 2?

Q. All elements of period 7 are radioactive.

1. True
2. False

Q.

Which of the following elements does not lose an electron easily?

1. Na

2. Mg

3. Al

4. F

Q.

Elements present in first period_____________.