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dangina [55]
3 years ago
8

Which of these pairs of elements have the same number of valence electrons

Chemistry
1 answer:
erastovalidia [21]3 years ago
6 0
Beryllium (Be) and Calcium (Ca)
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Write the electrons configuration for an atom of an element whose atomic number is 8
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If a person had the values for an objects density and volume, what value can be calculated
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Hello there! With the values of density and volume, you would be able to find the object's mass.

Density is found by dividing the mass by the volume, so you could place in the values of the density and the volume to get the mass.

For example:

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The 500 being density and 100 being volume. You would use simple math rules and multiply 10 by 500, and you'd get 5000, therefore using the density and volume values and giving you the mass.

I hope I could help you and have a great day!

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3 years ago
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Is a planar carbon "backbone" possible for propane? Explain.
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Answer:

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Cyclopropane is a necessarily planar molecule with a bond angle that is far less than the expected tetrahedral bond angle due to strain in the molecule. Hence, the carbon atoms may have have a "planar backbone".

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3 years ago
Metals experience plastic deformation when _____.
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HELP NOW!!
Bess [88]
Alkaline Earth Metals are the elements located in the second period from the left of the periodic table. These elements lose two electrons to form the stable octet when forming an ionic bond, resulting in a net charge of +2. Because they’re trying to get rid of those electrons to get to the stable octet, it’s easy to remove them - this means that the ionization energy of these elements is relatively low. Finally, since they’re looking to get rid of electrons, they certainly aren’t trying to gain any, meaning that their electronegativity is relatively low.

The correct answers are A and D.
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3 years ago
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