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nirvana33 [79]
2 years ago
9

Name the element which lies in group IA and 3rd period. What is the valency of it and why?​

Chemistry
1 answer:
Dafna11 [192]2 years ago
8 0

Answer:

Na valency 1

Explanation:

Na -sodium.

This element is in the 1A group, so it has 1 electron on the last (valent) level.

So, only 1 electron can participate in forming chemical bond, and therefore the valency of Na is 1.

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Explanation:

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What causes water to become denser when it is carried to the poles by surface currents? increased temperature and increased sali
Anarel [89]

Answer:

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Explanation:

It is what is known as the thermohaline circulation

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Saltier water is much denser than water that has less salt:

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3 0
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Read 2 more answers
Covalent bonds take place between..
umka2103 [35]

Answer:

Covalent Bonds are formed when two non-metals share electrons

Hope this helps

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Which change does an increase in heat energy cause?
Bumek [7]

Answer:

C more collision between molecules

Explanation:

increase in heat causes increase in kinetic energy of the particles

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