Chemistry · Atomic Structure
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How many electrons can occupy in 7th energy level of an atom? Calculate by using 2n2 formula.
- A
24
- B
5
- C
72
- D
98
Equation 2n² gives the maximum number of Electrons a shell can contain. So, we are asked to calculate the number of Electrons on the 7th energy level, replace n of the equation with 7 and calculate the number of Electrons. Remember, do not multiply 2 with 7 first, you have to take the square of 7 first and then multiply the calculated value with 2. You will get 98.
= 2n² = 2 × (7)² = 2 × 49 = 98
Equation 2n² gives the maximum number of electrons a shell can contain. So, we are asked to calculate the number of electrons on the 7th energy level, replace n of the equation with 7 and calculate the number of Electrons. Remember, do not multiply 2 with 7 first, you have to take the square of 7 first and then multiply the calculated value with 2. You will get 98.
= 2n² = 2 × (7)² = 2 × 49 = 98
Equation 2n² gives the maximum number of electrons a shell can contain. So, we are asked to calculate the number of electrons on the 7th energy level, replace n of the equation with 7 and calculate the number of Electrons. Remember, do not multiply 2 with 7 first, you have to take the square of 7 first and then multiply the calculated value with 2. You will get 98.
= 2n² = 2 × (7)² = 2 × 49 = 98
Equation 2n² gives the maximum number of electrons a shell can contain. So, we are asked to calculate the number of electrons on the 7th energy level, replace n of the equation with 7 and calculate the number of Electrons. Remember, do not multiply 2 with 7 first, you have to take the square of 7 first and then multiply the calculated value with 2. You will get 98.
= 2n² = 2 × (7)² = 2 × 49 = 98
Equation 2n² gives the maximum number of electrons a shell can contain. So, we are asked to calculate the number of electrons on the 7th energy level, replace n of the equation with 7 and calculate the number of Electrons. Remember, do not multiply 2 with 7 first, you have to take the square of 7 first and then multiply the calculated value with 2. You will get 98.
= 2n² = 2 × (7)² = 2 × 49 = 98
Tagged under Chemistry · Atomic Structure · 2021