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dusya [7]
2 years ago
6

Polonium crystallizes in a simple cubic unit cell with an edge length of 3.36 Å.

Chemistry
1 answer:
Diano4ka-milaya [45]2 years ago
8 0

a. The unit cell is the smallest group of atom which have overall symmetry of a crystal, and from which is the entire letters can be buled built up by repetition in 3 dimensions.

b. The volume(v) of the unit cell is equal to the cell edge length (a)cubed.

c. density of polonium is 9.32g/cm3.

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Lisa [10]
The correct options would be

OPTIONS 1 & 2

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Need help with this science question..
natali 33 [55]

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5.5 cm east + 3.5 cm west =
Firlakuza [10]
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The hydrogen-line emission spectrum includes a line at a wavelength of 434 nm. What is the energy of this radiation? (h= 6.626 x
Andrews [41]
Wavelength = 434nm = 434 x 10⁻⁹m
planck's constant = <span>h= 6.626 x 10 ⁻³⁴ J
E =?
by using the formula;
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value for c is 3 x 10⁸ m/s
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6 0
3 years ago
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Tatiana [17]

Answer:

They are classified as METALS.

Explanation:

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METALS are the type of elements that loses electrons to form positive ion, that is, they are electropositive elements. They are distinguished by the following characteristics:

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8 0
3 years ago
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