Answer:
What are the options
Explanation:
Tell me
(2) In the third shell, an electron has more energy and is farther from the nucleus.
(3) In the third shell, an electron has less energy and is closer to the nucleus.
(4) In the third shell, an electron has less energy and is farther from the nucleus.
B. 3 protons, 1 electron, and 3 neutrons.
C. 2 protons, 2 electrons, and 1 neutron.
D. 3 protons, 2 electrons, and 1 neutron.
Answer: Option (4) is the correct answer.
Explanation:
Atomic mass of an atom or element means the total number of protons and total number of neutrons present.
Whereas atomic number means the total number of protons present in an atom or element.
In period 5 on the Periodic Table, elements from left to right are arranged in order of increasing atomic number.
On the other hand, the atomic mass is not increasing from left to right.