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Orlov [11]
3 years ago
7

Why are pennies good for simulating radioactive atoms? Check all that apply. Pennies have two sides—one to represent radioactive

form and another to represent nonradioactive form. You can easily see the two different forms. You can create a large sample of pennies. Pennies are not actually hazardous. The chance of an atom decaying during a half-life cycle is 50%, the same as flipping a coin and getting tails.
Chemistry
2 answers:
Oksi-84 [34.3K]3 years ago
4 0

Answer: all of those are the right choices. :) promise

Explanation:

Gnom [1K]3 years ago
4 0

Answer:

Pennies have two sides—one to represent radioactive form and another to represent nonradioactive form.

You can easily see the two different forms.

You can create a large sample of pennies.

Pennies are not actually hazardous.

The chance of an atom decaying during a

half-life cycle is 50%, the same as flipping a coin and getting tails.

Explanation:

on edge 2020

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The element thallium is 70% thallium-205 and 30% thallium-203. Calculate its relative atomic mass to 1 decimal place.
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Answer:

answer-

The relative atomic mass = 204.4

explanation:

Thallium -203 = 30%

Thallium -205 = 70%

Therefore ,

relative mass of thallium = (30×203 + 70×205)/100

relative mass of thallium = (20440)/100

relative mass of thallium = 204.40 amu

Thus,

relative atomic mass of thalium =204.4 ( to 1 decimal place)

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