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Molecules and Atomicity

Mention the d...

Question

Mention the difference between $N_{2}$ and $2 N$ ?

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Solution

$N_{2}$ represents one molecule of nitrogen which consists of two atoms and $2 N$ represents two separate atoms of nitrogen.

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Explain the difference between 2N and $N_{2}$ .

n

A

n^{2} + 2 n .

Find the first term and common difference

n^{2}

(n + 1)^{2}

2 n

non-square numbers.

Q. The number 1, 2, ....,

n^{2}

are arranged in an

n \times n

array in the following way

1	2	3	....	n
n+1	n+2	n+3	....	2n
...				...
$n^{2} - n + 1$	$n^{2} - n + 2$	$n^{2} - n + 3$	....	$n^{2}$

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Q. There are non-square numbers between

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(n + 2)^{2}

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