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spayn [35]
3 years ago
12

What ion will be formed by the selenium atom shown below when it has a stable set of valence electrons?

Chemistry
1 answer:
Bas_tet [7]3 years ago
3 0

Answer:

Explanation:

D. Se2−

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18 L

Explanation:

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33 protons 36 electrons 45 neutrons
Artist 52 [7]

As has an atomic number of 33, so it has 33 protons.  

It has a charge of 3-, so there are three more electrons than protons. Thus, there are 36 electrons.  

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6 0
3 years ago
2. What is the mass of a car with a momentum of 10,000.00 kgm/s, traveling at 15.0 m/s?
Svetradugi [14.3K]

Answer:

666.67 kg is the mass of a car.

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Momentum is defined as amount of motion possessed by the the moving body. It is mathematically calculated by multiplying mass into velocity by which object is moving.

Momentum(P)=Mass(m)\times Velocity(v)

Mass of the car = m =?

Velocity of the car = v = 15.0 m/s

Momentum of the car = P = 10,000.00 kgm/s

m=\frac{P}{v}

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666.67 kg is the mass of a car.

7 0
3 years ago
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