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cluponka [151]
4 years ago
10

Which particle has the larger radius in each atom/ion pair? 14.2

Chemistry
1 answer:
Pachacha [2.7K]4 years ago
4 0
C I,i- has the largest atomic radius
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Kingdom, phylum or division, class, order, family, genus, species 
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A ___is used to measure air pressure.
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barometer

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True or false? The empirical formula of a compound is the simplest formula that shows the numerical relationship of the elements
Delicious77 [7]

Answer:

True

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Astatine is a halogen with several isotopes that all have short half-lives. Which of the following combinations of mass number a
DedPeter [7]

Answer:

Astatine is a halogen with several isotopes that all have short half-lives.

Which of the following combinations of mass number and neutrons are possible as isotopes of astatine? Choose one or more:

i) A = 211, n = 127

ii) A = 210, n = 125

iii) A = 220, n = 134

iv) A = 207, n = 122

v) A = 209, n = 124

Explanation:

The mass number is the sum of the number of protons and the number of neutrons in an atom.A=no.of protons+no.of neutrons\\=>no.of neutrons=A-no.of protons\\

Atomic number of At(astatine ) =85

That means it has --- 85protons.

Its mass number A=210

Hence, the number of neutrons in At are:

n=A-Z\\=>n=210-85\\=>n=125

Second option:

ii) A=210 , n=125 is the answer.

4 0
3 years ago
Empirical Formula of P3O4H2?
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H2 P4 O1. Explanation: In order to calculate the Empirical formula , we will assume that we have started with 10 g of the compound.

Explanation:

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