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krok68 [10]
2 years ago
13

Which of the following has the smallest radius? Br- I Br I-

Chemistry
2 answers:
Arisa [49]2 years ago
5 0

Answer:

i would say the the first 1

Explanation:

kirill115 [55]2 years ago
4 0

Answer:

Br

Explanation:

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If the half-life of a radioisotope is 10,000 years, the amount remaining after 20,000 years is
Cloud [144]

Answer:

Considering the half-life of 10,000 years, after 20,000 years we will have a fourth of the remaining amount.

Explanation:

The half-time is the time a radioisotope takes to decay and lose half of its mass. Therefore, we can make the following scheme to know the amount remaining after a period of time:

Time_________________ Amount

t=0_____________________x

t=10,000 years____________x/2

t=20,000 years___________x/4

During the first 10,000 years the radioisotope lost half of its mass. After 10,000 years more (which means 2 half-lives), the remaining amount also lost half of its mass. Therefore, after 20,000 years, the we will have a fourth of the initial amount.

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3 years ago
23. The number of protons in the nucleus of an atom is its...
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The number of proton in the nucleus of an atom is its Atomic Number.

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Are fossils likely to form in areas that experience a lot of erosion on daily basis?
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2 years ago
Which one of the following properties is NOT a chemical property? (5 points)
telo118 [61]

Answer:

a

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Density is a physical property.

8 0
3 years ago
2 atm of pressure would be equal to ____________ mmHg.
Ahat [919]

Answer:

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