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Increase from left to middle and decrease from there to the right.
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∙ 10y ago
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Is the trend across a period similar or different for periods 2 3 4 and 5?
Similar for they have the same number of electrons in the last shell
What element deviates from the trend in ionisation energy across period 2?
boron electros removed from 2p orbitals more shielded from the + nucleus so easily lost
Does elements on the periodic table decrease in atomic size when you move across a period from left to right and when you move down a group?
1. In a period is a trend of decrease from left to right but it is not absolute.2. In a group the atomic radius increase moving down.
What period is boron?
period 2
How many transition metals are there in period 2 how many in period 3?
In period 2, there are no transition metals.In period 3, there are no transition metals.
Why does the change for the atomic radii of the elements for period 3 from sodium to argon look similar to period 2?
Because the trend is the same. Atomic radius decreases from left to right across a period.
Why does the change for the atomic radii of elements in period 3 from sodium to argon look similar to period 2?
Because the trend is the same. Atomic radius decreases from left to right across a period.
Is a trend across a period similar or different for periods 2 3 4 and 5?
Similar for they have the same number of electrons in the last shell
Is the trend across a period similar or different for periods 2 3 4 and 5?
Similar for they have the same number of electrons in the last shell
What was the effect on peoples diet in World War 2?
As a general trend, people ate less, since World War 2 was the first instance of rationing in US History.
Do any 2 solids have the same densities?
They do if they are the same material
Can you describe the general trend in atomic radius in group 2A?
In the group 2 (IUPAC name) of the periodic table the atomic radius increase from beryllium to radium.
What element deviates from the trend in ionisation energy across period 2?
boron electros removed from 2p orbitals more shielded from the + nucleus so easily lost
What 2 things have extraordinarily large densities?
'Black holes' and neutron stars.
What method could you use to separate 2 things that have different densities?
A centrifuge.
Does elements on the periodic table decrease in atomic size when you move across a period from left to right and when you move down a group?
1. In a period is a trend of decrease from left to right but it is not absolute.2. In a group the atomic radius increase moving down.
Does an element on the periodic table decrease in atomic size when you move across a period from left to right and when you move down a group?
1. In a period is a trend of decrease from left to right but it is not absolute.2. In a group the atomic radius increase moving down.
