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slavikrds [6]
4 years ago
12

Elements in the same group have _____. the same number of electron shells the same atomic number similar chemical properties the

same number of electrons
Chemistry
2 answers:
Bezzdna [24]4 years ago
6 0
They have similar valence electrons and properties
Vlad1618 [11]4 years ago
6 0
Similar valence electrons and chemical and physical properties!
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A block of aluminum occupies a volume of 0.015 L and has a mass of 40.5 g. What is its density
yan [13]

Answer:

<h2>Density = 2700 g/L</h2>

Explanation:

Density of a substance can be found by using the formula

Density =  \frac{mass}{volume}

From the question

volume = 0.015 L

mass = 40.5 g

Substitute the values into the above formula and solve for the Density

That's

Density =  \frac{40.5}{0.015}

We have the final answer as

Density = 2700 g/L

Hope this helps you

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Purines are 2 Ring or Carbon Ring, Nitrogen containing bases. That consist of these 2 rings next placed next to each other. These examples include - Adenine and Guanine.

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