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galben [10]
3 years ago
10

NEED ANSWER FAST!

Chemistry
1 answer:
kupik [55]3 years ago
6 0

Answer:

Both are unreactive.

Explanation:

Atom      Number of Electrons

 A                        2

 D                       10

The two atoms A and D are very stable and unreactive.

Valence electrons the outermost shell electrons in a neutral atom.

The number of valence electrons in A is 2

The number of valence electrons in D is 8

The atoms are stable and unreactive because for A, its two electrons are in the k-shell in which the maximum number of electrons here is 2. It has a noble configuration which makes it stable.

For atom D, the outermost electrons are in the L-shell in which the maximum number of electrons is 8. This also makes it stable and unreactive.

Both atoms will be reluctant to lose or gain electrons.

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so you can do the maths your self

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The given information are;

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The concentration of the chemical discharged directly into the water = 0.1 mol/h

The concentration, c_{(inflow)}, of chemical that enters the water through inflow per hour is given as follows;

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