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What happens to the ionic radius values of the cations( plus ) as you move across period 2?
As you move across period 2 from lithium (Li) to neon (Ne), the ionic radius of cations generally decreases. This is due to the increasing positive charge in the nucleus, which pulls the electrons closer to the nucleus and reduces the size of the cation. Additionally, the increase in effective nuclear charge without a corresponding increase in electron shielding causes the ionic radius to shrink. Consequently, cations like Li⁺ are larger compared to cations like N³⁺ or O²⁺ in the same period.
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What happens to the ionic radius values of the cations(-) as you move across period 2?
The ionc radius of lithium is bigger compared to beryllium.
What causes metals to be less reactive across a period?
Metals become less reactive across a period due to an increase in ionization energy and a decrease in atomic radius. These factors make it more difficult for metals to lose electrons and form cations, resulting in decreased reactivity.
What happens to the atomic radius when you go from left to right on the periodic table of elements?
The atomic radius decrease, with several exceptions in periods 6 and 5.
Atomic radius _moving from left to right across a period?
Decreases
What does atomic radius do across a period?
Atomic radius tends to decrease across a period from left to right. This is because as you move across a period, the number of protons in the nucleus increases, leading to an increase in the effective nuclear charge felt by the outermost electrons, which pulls them closer to the nucleus.
What happens to the ionic radius values of the cations(-) as you move across period 2?
The ionc radius of lithium is bigger compared to beryllium.
What causes metals to be less reactive across a period?
Metals become less reactive across a period due to an increase in ionization energy and a decrease in atomic radius. These factors make it more difficult for metals to lose electrons and form cations, resulting in decreased reactivity.
Do anions have a larger radius compared to cations?
Yes, anions have a larger radius compared to cations.
Which has a higher covalent radius cations or noble gases?
noble gases have larger radius than cations.
What happens to the atomic radius when you go from left to right on the periodic table of elements?
The atomic radius decrease, with several exceptions in periods 6 and 5.
How does the atomic radius vary in a period?
Atomic radius decreases across a period from left to right, except for the noble gases.
What happens to the radius of an atom as you go from the 7th period to the 1st period?
It increases.
What increases down a group and decreases across a period?
Atomic radius
Atomic radius _moving from left to right across a period?
Decreases
What does atomic radius do across a period?
Atomic radius tends to decrease across a period from left to right. This is because as you move across a period, the number of protons in the nucleus increases, leading to an increase in the effective nuclear charge felt by the outermost electrons, which pulls them closer to the nucleus.
How does atomic radius vary in group and in period on periodic table?
Down a period the atomic radius increases as the number of shells (or energy levels) increases. Across a period the atomic radius decreases as the effective nuclear charge increases.
What happens to the atomic radius as you go across a period?
It decreases as you move from left to right because there is an increase in positive charge in the nucleus as you go from left-to-right. Each time you go over an element it has one more electron and proton added to the principal energy level, so the nucleus pull increases and it holds the valence electron in tighter.
