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olasank [31]
3 years ago
15

How are elements in each group the same?

Chemistry
1 answer:
Amanda [17]3 years ago
6 0

Answer:

They share the same number of electrons in their valence subshells.

Explanation:

They have the same number of electrons on the outer shell.

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The answer is D.1.950 g

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5 0
3 years ago
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8 0
3 years ago
How do you find empirical formula
kifflom [539]

Answer:

Convert the mass of each element to moles using the molar mass from the periodic table. then Divide each mole value by the smallest number of moles calculated. Round to the nearest whole number

6 0
3 years ago
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:

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relative mass of thallium = (20440)/100

relative mass of thallium = 204.40 amu

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

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Which of the following liquids would turn
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