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Aneli [31]
3 years ago
12

In the nucleus of an Adam there are 18 protons and 20 neutrons what are the atomic number and mass number of this isotope

Chemistry
2 answers:
yKpoI14uk [10]3 years ago
6 0
Atomic number = 18 (Number of protons) 
Mass number = 18 + 20 (Number of protons + neutrons)
abruzzese [7]3 years ago
3 0

Answer:

The atomic number this isotope is 18.

The atomic mass this isotope is 38.

Explanation:

Atomic number(Z) = Total numbers of protons

Mass number (A) = Total number of protons(Z) + Total number of neutrons(N)

A = Z + N

We have :

Number of protons in a nucleus of a given atom of an isotope, Z= 18

Number of neutrons in a nucleus of a given atom of an isotope, N= 20

A = Z + N = 18 + 20 = 38

The atomic number this isotope is 18.

The mass number  this isotope is 38.

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Using accurate measurements, using pure chemicals and performing the reaction under the most ideal conditions is important to get a valuable percent yield.

<h3>How we calculate the percent yield?</h3>

Percent yield of any chemical reaction is define as the ratios of the actual yield to the theoretical yield of the product and multiply by the 100.

To get the high percent yield or actual yield of any reaction, we have to perform the reaction under ideal condition because if we not use the standard condition then we get the low rate of reaction. Reactants should be present in the pure form as impurity make unwanted products and reduce the productivity of main product and accurate amount of reactants also important for the spontaneous reaction.

Hence, options (a), (b) & (c) are correct.

To know more about percent yield, visit the below link:

brainly.com/question/8638404

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2 years ago
Jupiter looks as if it has stripes, thanks to ______ that surrounded it.
bulgar [2K]
Jupiter looks as if it has stripes, thanks to the gas that surrounds it :)
4 0
3 years ago
1 Balance each equation. Paragraph Styles Voice Sensity 2) Indicate the type of reaction by classifying each reaction as single
nika2105 [10]

1. Double replacement (DR)

2. Decomposition (D)

<h3>Further explanation</h3>

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General form :

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6 0
3 years ago
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MA_775_DIABLO [31]

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3 years ago
What is the percent yield of O2 if 10.2 g of O2 is produced from the decomposition of 17.0 g of H2O?
yawa3891 [41]

The balanced chemical reaction will be:

2H2O = 2H2 + O2

<span>We are given the amount of water used in the decomposition reaction. This will be our starting point.</span>

<span>17.0 g H2O</span> (1 mol  H2O/ 18.02 g H2O) (1 mol O2/2 mol <span>H2O</span>) ( 32.00 g O2/1mol O2) = 15.09 g O2

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<span>Percent yield =10.2 g / 15.09  g x 100</span>

Percent yield = 67.58%

5 0
3 years ago
Read 2 more answers
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