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S_A_V [24]
3 years ago
10

Why do atoms of different elements vary in size?

Chemistry
2 answers:
Usimov [2.4K]3 years ago
7 0

Answer:

As you go down the periodic table, usually atoms get bigger because n gets bigger (there are electrons in higher shells). Effective nuclear charge does get bigger too going down the periodic table, but this effect is smaller than the change in shell.

Explanation:

Zinaida [17]3 years ago
3 0
As you go down the periodic table, usually atoms get bigger because n gets bigger (there are electrons in higher shells). Effective nuclear charge does get bigger too going down the periodic table, but this effect is smaller than the change in shell.
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The following data was collected when a reaction was performed experimentally in the laboratory.
Reptile [31]

The maximum amount of AlCl_3 produced during the experiment can be find out by knowing the Limiting Reagent.

Here, The maximum amount of AlCl_3 produced during the experiment is  400 grams

<h3>What is Limiting reagent ?</h3>

The limiting reagent (or limiting reactant or limiting agent) in a chemical reaction is a reactant that is totally consumed when the chemical reaction is stopped.

Now, According to the question,

Given ;

Number of moles of Al(NO_3)_3 - 4 moles

Number of moles of NaCl - 9 moles

To Find - Maximum amount of AlCl_3 produced during the reaction.

Solution ;

complete reaction ;

Al(NO_3)_3  + 3NaCl -->   3NaNO_3 + AlCl_3

To find the maximum amount of AlCl_3 produced during the reaction,

we need to find the limiting reagent.

Mole ratio Al(NO_3)_3  = 4/1 = 4

Mole ratio NaCl = 9/3 = 3

Thus, NaCl is the limiting reagent in the reaction.

Now, 3 moles of NaCl produces 1 mole of   Al(NO_3)_3

9 moles of NaCl will produce = 1/3 x 9 = 3 moles.

Weight of   Al(NO_3)_3 = 3 x 133.34 = 400 grams

Thus, 400 grams of   Al(NO_3)_3  is the maximum amount of   Al(NO_3)_3 produced during the experiment.

Learn more about Limiting Reagent Here ;

brainly.com/question/20070272

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8 0
2 years ago
Which electron configuration represents the electrons of an atom of neon in an excited state
gulaghasi [49]

Answer:

Explanation:

The answer is 2-7-1, because the second shell isnt full and it already has a third shell.

7 0
3 years ago
What is the molar mass of bromine gas in grams
-BARSIC- [3]

Answer:

79.904 g/mol

Explanation:

The molar mass of bromine is 79.904 g/mol.

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3 years ago
What is The mass of 1 gram
NARA [144]
One kilogram is the answer
3 0
3 years ago
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you teacher lit a candle and told you that this was a chemical reaction. What are the reactants in this chemical reaction
lisabon 2012 [21]
Thermal, kinetic,  and light energy, I believe however you may want a second opinion. 
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3 years ago
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