Answer:
Explanation:
The electronic configuration of many ions is that if a closes noble gas to them in a periodic table.
An Anion is a ion that has gained one or more electron, acquiring a negative charge.
A Cation is a ion that has lost one or more electron, gaining a positive charge.
Answer:
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A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.
Explanation:
The velocity of the ball is 12.5 m/s
Explanation:
The velocity of the ball is given by the ratio between the distance covered by the ball and the time taken:

First, we calculate the distance covered. We know that the radius of the circle is
r = 0.450 m
And the length of the circumference is

The ball makes 25.0 revolutions, so a total distance of

In a time of
t = 9.37 s
So, its velocity is

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No it's the quite opposite simple