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V125BC [204]
1 year ago
11

Why does the Periodic Table have that separated part (lanthanides and actinides) at the bottom?

Chemistry
1 answer:
zepelin [54]1 year ago
3 0

In the periodic table the lanthanoid and the actinides are place separately at the bottom because of their electronic configuration and their properties compared to the other elements.

The  the lanthanoid and the actinides are place separately at the bottom in the periodic table due to their electronic configuration and the properties. and to make the periodic table more convenient . if we place the f block elements that is he lanthanoid and the actinides then the size of the periodic table will increase. the f block elements are called as the inner transition element.

Thus , to make the periodic table more convenient and to group the elements in the block the the lanthanoid and the actinides are place separately at the bottom.

To learn more about lanthanoid and actinide here

brainly.com/question/24390376

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If the density of mercury is 13.6 g/mL, what is the mass of 25.4 cm3 of<br> mercury?
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Answer:

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Explanation:

Applying

D = m/V...................... Equation 1

Where D = Density of mercury, m = mass of mercury, V = Volume of mercury.

make m the subject of the equation

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From the question,

Given: D = 13.6 g/mL = 13.6 g/cm³, V = 25.4 cm³

Substitute these values into equation 2

m = 13.6×25.4

m = 345.44 g

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Setler79 [48]

Answer:

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Explanation:

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