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2 years ago

How many neutrons does 85Rb have?

Chemistry

1 answer:

Leona [35]2 years ago

8 0

Answer:

Rb has two isotopes - one having 48 neutrons and the other having 50 neutrons. The atomic mass number of an isotope is the sum of the protons plus neutrons in the nucleus, so the two stable isotopes of Rb are designated 85Rb and 87Rb (their atomic mass numbers).

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1 year ago

What is important to note regarding neutral atoms?

S_A_V [24]

Answer:

neutral atoms when an atom is charge less

Explanation:

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2 years ago

the bond angle marked a in the following molecule is about . question 24 options: a) 109.5 b) 180 c) 60 d) 120 e) 90

Sophie [7]

The bond angle marked as ‘a’ in the molecule above is about: D. 120 degrees. That means the angle between the atoms forms a trigonal planar shape.

<h3>What is the bond angle?</h3>

The bond angle is an angle between two bonds that measures in degrees and is calculated by using the spectroscopic method. The bond angle depends on the bonds and the number of lone pairs an atom has.

The molecule above contains 3 electron charge clouds around them: a single bond to carbon, a single bond to oxygen, and a double bond to the other oxygen. Hence, the O-C=O bond angle from the molecule above is 120 degrees.

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6 months ago

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masha68 [24]

Answer:

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The process of transforming energy brings about some loss of energy into the environment.
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2 years ago

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Fiesta28 [93]

Answer:

Explanation:

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2 years ago

Read 2 more answers