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Talja [164]
3 years ago
11

A. If you have a Periodic Table that is NOT color coded, describe WHERE to look on the Periodic Table to find elements which hav

e similar chemical properties.
B. Explain WHY they have similar chemical properties.

C. Name three elements that have those similarities.
Physics
2 answers:
Mnenie [13.5K]3 years ago
6 0
I only know C. hope this helps lithium, sodium, and potassium.
Valentin [98]3 years ago
4 0

Answer:

If periodic table is not color coded then we should look at the group to find elements which have similar chemical properties.

For example: Elements of group 1 forms basic oxides

And elements in group has equal number of valence electrons.

Like elements of  group 1 are: lithium, sodium and potassium.


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Answer:

True.

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In Millikan's experiment, an oil drop of radius 1.362 μm and density 0.888 g/cm3 is suspended in chamber C when a downward-point
Misha Larkins [42]

Answer:

The charge on the oil drop is 3e

Explanation:

F = qE

Where;

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E is the electric field potential N/C

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Given;

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density, ρ = 0.888 g/cm³ = 0.888 X 10³ kg/m³

Electric field potential = 1.92 ✕ 10⁵ N/C

F =mg

mass of the oil drop = density, ρ  X volume of the oil drop

volume of the oil drop (spherical) =  (4/3)πr³ = 1.3333π(1.362 X 10⁻⁶)³

⇒ volume of the oil drop = 10.584 X 10⁻¹⁸ m³

mass of the oil drop = 0.888 X 10³ (kg/m³) X 10.584 X 10⁻¹⁸ (m³)

⇒ mass of the oil drop = 9.399 X 10⁻¹⁵ kg

⇒ F =mg = 9.399 X 10⁻¹⁵ kg X 9.8 = 9.21 X10⁻¹⁴ N

F = qE

q = F/E

q = (9.21 X10⁻¹⁴)/(1.92 ✕ 10⁵) = 4.797 X 10⁻¹⁹ C

In terms of e

1e = 1.6 X10⁻¹⁹ C

=  (4.797 X 10⁻¹⁹ C)/(1.6 X10⁻¹⁹ C) = 3e

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