Answer the following questions for each of the elements given below.

Question

a) Neon
1. Write the complete electron configuration.
2. What is the valence shell? 3. How many valence electrons are there? 4. How many electrons between the nucleus and valence shell are there?
6. What is the charge on the entire atom? 7. What is the noble gas configuration for this element?

Answer 1

Let's analyze the element Neon (Ne) based on the specified questions.

a) Neon

1. Complete Electron Configuration: The complete electron configuration for Neon is: \[ 1s^2 , 2s^2 , 2p^6 \]

2. Valence Shell: The valence shell for Neon is the outermost shell, which in this case is the second shell (n=2).

3. Number of Valence Electrons: Neon has 8 valence electrons (2 in the 2s orbital and 6 in the 2p orbitals).

4. Electrons Between the Nucleus and Valence Shell: There are 2 electrons in the first shell (1s^2), which is the only shell between the nucleus and the valence shell. Therefore, there are 2 electrons between the nucleus and the valence shell.

5. Charge on the Entire Atom: Neon is a neutral atom, so the charge on the entire atom is 0.

6. Noble Gas Configuration: The noble gas configuration for Neon is: \[ [He] , 2s^2 , 2p^6 \] where [He] represents the electron configuration of the noble gas Helium, which has 2 electrons (1s^2).

In summary for Neon:

1. Complete electron configuration: \(1s^2 , 2s^2 , 2p^6\)
2. Valence shell: 2nd shell (n=2)
3. Valence electrons: 8
4. Electrons between nucleus and valence shell: 2
5. Charge on the atom: 0
6. Noble gas configuration: \([He] , 2s^2 , 2p^6\)