Question

Why density decreases with increasing molecular weight of atoms in 3rd and 4th group of periodic table?

Answer 1

Explanation:

When Mass increases density increases.When Volume increases density decreases. The density increases from top to bottam since mass of Atoms increase 2x 3x times more than Volume. Volume increases by 1 time but mass increases multiple timed as compare to Volume. The density also increases from left to right since mass of an atom of different elements increases gradually.

So, density increases even in 3rd and 4th group of modorn periodic table from top to bottam and left to right.

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