Science, asked by XxMissCutiepiexX, 4 months ago

\huge\colorbox{pink}{What is Hydrogen ?}}

Answer briefly

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Answers

Answered by harsh2375
1

Answer:

Hydrogen is the chemical element with the symbol H and atomic number 1. With a standard atomic weight of 1.008, hydrogen is the lightest element in the periodic table. Hydrogen is the most abundant chemical substance in the universe, constituting roughly 75% of all baryonic mass.

Answered by Anonymous
0

Explanation:

Given,

a

=

10

,

last term

=

100

and

number of terms

=

1000

Sum of first

n

terms in an A.P. is

S

n

=

n

2

[First term

+

Last term]

=

1000

2

[

10

+

100

]

=

500

[

110

]

S

1000

=

55

,

000

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