Question

out of aluminium silicon and magnesium whose atomic number is greater​

Answer 1

ANSWER-

Silicon (Si) has the highest ionization energy. In a period, on moving from left to right, the ionization energy increases. Electrons are added to the same principal shell. Nuclear charge (atomic number) increases, the added electrons shields each other poorly from the nucleus. Effective nuclear charge increases and atomic radii decreases and ionization enthalpy increases along a period...

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Answer 2

Answer:

• Atomic no. of Aluminum- 13
• Atomic no. of Magnesium-12
• Atomic no. of Silicon-14

Explanation:

therefore the atomic no. of Silicon is higher than Aluminium & Magnesium.