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Tomtit [17]
3 years ago
5

Which of the following atoms has a full outer shell?

Chemistry
1 answer:
Liula [17]3 years ago
3 0

Magnesium has a full outer shell because it says +2 for Mg, which means it loses 2 electrons. It leaves Mg with an outer shell of 8 electrons, which is a full valence shell.

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3 0
4 years ago
Croquet balls must have a mass of 0.50 kg. A red croquet ball, moving at 10
julsineya [31]

The final speed of the  green ball : 8.5 m/s

<h3>Further explanation</h3>

Given

mass of Croquet ball = 0.5 kg

v₁= 10 m/s

v₁'= 1.5 m/s

Required

the final speed

Solution

The law of conservation of momentum

m₁v₁ + m₂v₂ = m₁v₁ '+ m₂v₂' (1=red croquet ball, 2=green croquet ball)

v₂=0 (at rest)

Input the value :

\tt 0.5\times 10+0.5\times 0=0.5\times 1.5+0.5\times v_2'\\\\5=0.75+0.5v_2\\\\4.25=0.5v_2\rightarrow v_2=8.5~m/s

8 0
3 years ago
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