Question

Match each element to the number of electrons in its valence shell. column a 1. chlorine (cl) : chlorine (cl) 2. neon (ne) : neon (ne) 3. phosphorus (p) : phosphorus (p) 4. sulfur (s) : sulfur (s) column b a. eight b. five c. six d. seven

Answer 1

The number of valence electrons each element has is determined by its group on the periodic table. Chlorine has seven, Neon has eight, Phosphorus has five, and Sulfur has six valence electrons.

Step-by-step explanation:

To match each element with the number of electrons in its valence shell, we need to consider the group of the periodic table in which each element resides.

• Chlorine (Cl) is in Group 17, therefore, it has seven valence electrons. Matching: 1. Chlorine (Cl) - d. seven.
• Neon (Ne) is in Group 18, so it has eight valence electrons, because it is a noble gas with a filled outer shell. Matching: 2. Neon (Ne) - a. eight.
• Phosphorus (P) is in Group 15, hence, it possesses five valence electrons. Matching: 3. Phosphorus (P) - b. five.
• Sulfur (S) is in Group 16, which makes it have six valence electrons. Matching: 4. Sulfur (S) - c. six.