Question

you r given an element 16/8x find out the (1)no.of Proton , neutron, electrone.(2) valency of element.(3) chemical formula of the compound formed when x reacts with hydrogen and oxygen..

Answer 1

Here is ur answer :

Atomic no. Of Element x = 8

Atomic mass of element x = 16

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A. No. Of electrons = No. Of protons.

No. Of protons = Atomic no.

No. Of protons = 8

No.Of electrons of element X is 8.

____________________________

B. Mass no. Of element X is 16 u.

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C. No. Of neutrons = Atomic mass - Atomic no.

= 16 - 8

= 8

No. Of neutrons in element X is 8.

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HOPE IT HELPS YOU... PLS MARK AS BRAINLEAST

REGARDS

Answer 2

1) number of proton=8

number of electron =8

number of neutron =atomic mass - atomic number

=16-8

=8

2) valency is 2.

3) when x reacts with hydrogen

H2+ O2—>H2O (water)

or

H2+O2—>H2O2 (Hydrogen peroxide)

I hope this answer may help u
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