All of the alkali metals, Group 1, have one valence electron. Which of these would represent the oxidation number of the alkali
2 answers:
The elements found in the Group 1, or the Alkali Metal Group, have electronic configurations that end in 
.This means that they have 1 electron readily available to release in order to achieve a stable state.
When these atoms release the valence electron, they will achieve a stable state. For example, Lithium's stable state will be
and Sodium will be 
.
The oxidation state will then be +1.
The answer is C.
When these atoms release the valence electron, they will achieve a stable state. For example, Lithium's stable state will be
The oxidation state will then be +1.
The answer is C.
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Answer:
They will move the fridge if they all push in the same direction, but it will not move with constant velocity
Explanation:
The maximum static friction force is
(negative sign since its direction is opposite to the push applied by the people)
Sam can apply a force of 130 N, while Amir and Andre can apply a push of 65 N each, so the total force that they can apply, if they push in the same direction, will be:
This force is larger than the frictional force, so the fridge will start moving.
However, the net force on the fridge will be:
And according to Newton's second law,
where m is the mass of the fridge and a its acceleration, since the net force is not zero, then the fridge will have a non-zero acceleration, so it will not move with constant velocity.