Question

Trends in the modern periodic table:

Answer 1

Answer:

1. The number of shells increases on going down the group.
2. The number of valence shell electrons increases with the increase in atomic number on moving from left to right in a period with each period marking the filling of a new electronic shell.
3. Atomic size decreases in moving from left to right along a period due to an increase in nuclear charge pulling the electrons closer to the nucleus.
4. Addition of new shells down the group increases the distance between the outermost electrons and the nucleus thereby increasing the atomic size down the group.

Explanation:

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Answer 2

Answer:

Electronegativity

Ionization Energy

Electron Affinity

Atomic Radius

Metallic character

Non-metallic character