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tankabanditka [31]
2 years ago
8

Perform the following calculations and record your answers with the appropriate significant figures.

Chemistry
1 answer:
krok68 [10]2 years ago
6 0

A=46.9

B=74.5

C=2.70

D=1.1

E=452.3

F=1.7

G=0.00016

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

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1 year ago
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6 0
3 years ago
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Answer:

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What does the poitof incidence mean?​
Lemur [1.5K]

Answer:

Point of incidence: The point on the surface where the incident ray strikes the surface is called the point of incidence. Reflected ray: The ray of light that bounces back from the surface of an object is called a reflected ray of light.

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