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Earn +20 ptsQ: Why does only phosphorus have valency more than 4?
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When do you use roman numerals in an element?
we usually use roman numerals in writing names of compounds of transitional elements which have more than one valency . for example we have two compounds of iron chloride , iron(II)chloride and iron(III)chloride depending on the valency of iron in each compound.
Can a hexagon have more than 8 sides?
No. A hexagon can only have six sides. No more, no less.
A number having more than 2 factors?
A number that has only two factors is prime. A number that has more than two factors is composite.
Is 657 is 28 more than 685?
Yes, only if you mean 685 is 28 more than 657 because 657+28 = 685
Why is 100 a composite number?
Because it has more than two factors whereas a prime number has only two factorsBecause it has more than two factors.
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