Question

1) How many electrons are there in each shell of an atom of lead?
2) What are isotopes?

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PLS ANSWER

Answer 1

Answer:

1. Each shell consists of one or more subshells, and each subshell consists of one or more atomic orbitals.
2. Isotopes are variants of a particular chemical element which differ in neutron number, and consequently in nucleon number. All isotopes of a given element have the same number of protons but different numbers of neutrons in each atoms.
3. Explanation:

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Answer 2

Answer:

1) total atoms in lead:82

Electrons for each shell: 2,8,18,32,18,4

2) Isotopes are the atoms of an element having same number of protons and electrons but with different number of neutron and atomic mass number they are named with their masses for eg carbon-12, carbon-13,carbon-14 are the isotopes of carbon having mass number of 12,13 and 14 respectively.

Explanation:

1) There are total 82 electrons in an atom of lead but according to your question, there is a quantity or certain amount of electrons can be there in each shell for eg. There are 2 electrons in the first shell, 8 in the second, 18 in the third shell, 32 in the fourth one, 18 in the fifth shell and 4 in the sixth one.. if u add all these it would be 82 to re check my answer

2) Isotopes are variants of a particular chemical element which differ in neutron number, and consequently in nucleon number. All isotopes of a given element have the same number of protons but different numbers of neutrons in each atom..