Choose correct option

1.	Choose correct option
Answer» $\huge{\colorbox{pink}{Answer}}$ the correct answer is 1 + 2 + 3..................(x - 1). Because,An atom has x energy level then total number of lines in its spectrum are 1 + 2 + 3..................(x - 1). An atom has x energy level then total number of lines in its spectrum are 1 + 2 + 3..................(x - 1).For EXAMPLE: An atom has x energy level then total number of lines in its spectrum are 1 + 2 + 3..................(x - 1).For example:When an atom has 5 energy LEVELS, the total number of lines in its spectrum will be 1+2+3+4=10.

Answer»

$\huge{\colorbox{pink}{Answer}}$

the correct answer is 1 + 2 + 3..................(x - 1).

Because,An atom has x energy level then total number of lines in its spectrum are 1 + 2 + 3..................(x - 1).

An atom has x energy level then total number of lines in its spectrum are 1 + 2 + 3..................(x - 1).For EXAMPLE:

An atom has x energy level then total number of lines in its spectrum are 1 + 2 + 3..................(x - 1).For example:When an atom has 5 energy LEVELS, the total number of lines in its spectrum will be 1+2+3+4=10.

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