Groups and Periods (Mendeleev's)

Q.

Which shells are called penultimate and prepenultimate shells?

Q. Amongst the following total number of elements which occur in combined state in earth's crust is:
F, Au, Na, Pt, Cl, Ag, K, Hg, Pb, Cr, W, Ni, Cu, Li, Br, B, Mg, Al, P, S, K, Sc, Ti

Q.

The element with atomic number 16 belongs to which of the following blocks?

1. f block

2. s block

3. p block

4. d block

Q. From top to bottom in any group of the periodic table the electropositive character of the element:

1. Increases
2. Decreases
3. Remains unchanged
4. Changes irregularly

Q. The element with the smallest size in group 13 is ___.

Q. According to Mendeleev’s periodic table, the vertical columns and horizontal rows are respectively called as:

1. Groups and rows
2. Rows and periods
3. Groups and periods
4. Periods and groups

Q. All the elements in a period of a modern periodic table have the same ______

1. Valence electrons
2. Valence shell
3. Atomic number
4. Mass number