Evidence of ionic radius decreasing as you go towards the metals on the periodic table

As you move across a row of the periodic table, the ionic radius decreases for metals forming cations, as the metals lose their outer electron orbitals. The ionic radius increases for nonmetals as the effective nuclear charge decreases due to the number of electrons exceeding the number of protons.

Explanation:

As you move across a row of the periodic table, the ionic radius decreases for metals forming  cations, as metals lose their outer electron orbitals. It raises for nonmetals as the effective nuclear charge decreases due to the number of electrons exceeding the number of protons.

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the answer is na (sodium)

what is the average time it took the car to travel 0.25 meters?

⇒ 2.23 seconds

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⇒ 3.13 seconds