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irina [24]
2 years ago
9

The main factor that influences the direction of any periodic trend across a period is ______.

Chemistry
1 answer:
aalyn [17]2 years ago
3 0

Answer:

The correct option is B

Explanation:

The number of valence electron(s) increases across the period and thus influences the direction of periodic trend of electronegativity, electron affinity and ionization energy across the period. Thus, making option B the answer.

It should be noted that option A is wrong because elements in the same period generally have the same number of electron shells and thus the distance of this shells from the nucleus remains the same throughout the same period and thus option C is also wrong. Option D is wrong because the periodic trends have to do with chemical reactions which actually involves electrons and not protons.

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Explanation:

5 0
3 years ago
What is one molar volume of the gas ammonia (NH3) at STP ?
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D 42.2 L/mol I’s is it I got it correct
7 0
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How many moles of argon would you have if you have 25 L of argon?
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Explanation:

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3 years ago
Why do real gases not behave exactly like ideal gases?
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2 years ago
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A 1.20-L container contains 1.10 g of an unknown gas at STP. What is the molecular weight of the unknown gas?
SOVA2 [1]

Answer:

M = 20.5 g/mol

Explanation:

Given data:

Volume of gas = 1.20 L

Mass of gas = 1.10 g

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Formula:

d = mass/ volume

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d = PM/RT

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M = 20.5 g/mol

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