Question

An element X has three shells. The valence shell has one electron more than twice the number of electrons as there are in its first shell:

a) Write its electronic configuration and valency.

b) Predict the nature of element X with reason.

c) Derive the formula of the compound formed when X reacts with sodium

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Answer 1

Answer:

The Coordination number of an atom in a given molecule or a crystal refers to the total number of atoms, ion, or molecules bonded to the atom in question. ‘Ligancy’ is another term used to refer to the coordination number of an atom.TodddengE,gurooR ishQka..or is kadaR sudharjaayenge,, khadii rahegiimohaBBatraasTe prr...huM saamne se guzaRjaayengE..

Answer 2

Answer:

Journal entry When goods are purchased by paying cheque. Purchase goods for Rs 2000 by paying cheque Rs 20,000. and rule of Real account is Dr what comes in and Personal A/c is Cr the giver her Purchase is debit as goods comes in the business and Bank is Cr as bank is giver of money.