Question

Put the following elements in order, with the element having the most valenceelectrons at the top of your list and the element with the fewest valenceelectrons at the bottom.Sodium (Na)Silicon (Si)11 Neon (Ne)11 Oxygen (0)1 Nitrogen (N)11 Aluminum (AI)Calcium (Ca)t Chlorine (CI)

Answer 1

The elements in order of the most to the fewest valence electrons are: Neon(Ne), Oxygen(O), Nitrogen(N), Sodium(NA), Aluminium(Al), Silicon(Si), Chlorine(Cl) and Calcium(Ca).

To arrange the elements in order of the most to the fewest valence electrons, you can use their respective group numbers:

1. Neon (Ne) - 8 valence electrons

2. Oxygen (O) - 6 valence electrons

3. Nitrogen (N) - 5 valence electrons

4. Sodium (Na) - 1 valence electron

5. Aluminum (Al) - 3 valence electrons

6. Silicon (Si) - 4 valence electrons

7. Chlorine (Cl) - 7 valence electrons

8. Calcium (Ca) - 2 valence electrons

The elements are listed from top to bottom based on their group number or the number of valence electrons, starting with the element having the most valence electrons (Neon) at the top and ending with the element having the fewest valence electrons (Calcium) at the bottom.

Answer 2

1. Cl

2. O

3. N

4. Si

5. Al

6. Ca

7. Na

8. Ne

the valance electrons are the electrons available in the last most external energy layer of an atom. The are presented in groups (columns) of the periodic table, elements in the same group (column) have the same number valence electrons and this number increases from left to right. Only the rightmost column, the noble gases column, is an exception because their number of valence electron is 0