Question

trends for the following


1. Effective Nucleur Charge
2. Atomic Radius
3. Ionisation Energy
4. Electron Gain Enthalpy
5. Electronegativity

best answer will be marked as BRAINLIEST
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Answer 1

Answer:

1.Effective Nuclear Charge :

a) Increases across a period [due to increasing nuclear charge with no accompanying increase in shielding effect]

b) decreases down a group ( although nuclear charge increases down a group, shielding effect more than counters its effect)

2. Atomic Radius :

a) The atomic radius of atoms decreases from left to right across a period

b) the atomic radius of atoms increases from top to bottom down a group

3. Ionisation energy :

a) Ionisation energy generally increases from moving left to right across a period

b) ionisation energy generally decreases from moving top to bottom down a group

4. Electron gain enthalfy :

a) The electron gain enthalfy becomes more negative while moving right across a period

b) moving down a group the electron gain enthalfy becomes less negative

5. Electronegativity :

a) The electronegativity of atoms decreases moving from top to bottom down a group in the periodic table

b) the electronegativity increases moving from left to right across a period in the periodic table

Hope this helps you

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