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natita [175]
2 years ago
7

What is valence of helium​

Chemistry
2 answers:
AnnZ [28]2 years ago
5 0
The valence of helium is 0.
enyata [817]2 years ago
4 0
The answer is zero (0).

Helium has zero valancy.

Because it belongs to the group of noble gases and the valance shells of noble gases are completely filled. So, they have no tendency to loose or gain electrons.

That is why helium has zero valancy
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Remodeling a kitchen to add additional cabinets to existing ones also means adding extra support. In a similar respect, bone rem
krok68 [10]

Answer:

Calcium (Ca²⁺)

Explanation:

Calcium is very important mineral, found in teeth and bones primarily.

It is needed for the strong bones.

It is very important to maintain the bones in order to support our skeleton.

In our body it is also important to carry out other functions like in muscles, nerve function and also for heart.

If our diet is not full of calcium, the calcium deficiency may occur which leads to the weakening of bones and cause fracture.

The dietary source of calcium includes:

Yogurt, cheese, milk

beans such as peas, peanuts.

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5 0
3 years ago
015
kozerog [31]

Answer:

Average of measurements = 20.97 cm

Explanation:

Given data:

Three measurements of pete's = 20.9 cm, 21.0 cm, 21.0 cm.

Average value of measurements = ?

Formula:

Average of measurements = sum of all measurements / Total number of measurements

Solution:

Average of measurements =  20.9 cm + 21.0 cm + 21.0 cm. / 3

Average of measurements = 62.9 cm / 3

Average of measurements = 20.97 cm

7 0
2 years ago
What is a characteristic of a lewis base?
statuscvo [17]
A Lewis base is characterized as any species that can donate a lone pair of electrons the Lewis acid (which has a vacant orbital for the lone pair to bond with)

8 0
3 years ago
Non examples of chemical formulas
Bezzdna [24]

Answer:

1+2 = 12

Explanation:

this is a math equation, not a chemical formula

6 0
3 years ago
Use the periodic table to identify the chemical symbol or name for each element below.
Tom [10]

Answer:yes

Explanation:yeaa

4 0
3 years ago
Read 2 more answers
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