Question

Match each element to the number of electrons in its valence shell.

Match Term Definition
Carbon (C) A) Four
Hydrogen (H) B) Two
Magnesium (Mg) C) One
Oxygen (O) D) Six

Answer 1

Here is the matching of each element to the number of electrons in its valence shell:

- Carbon (C) - A) Four
- Hydrogen (H) - B) Two
- Magnesium (Mg) - C) One
- Oxygen (O) - D) Six

So, the matches are:
- Carbon (C) → A) Four
- Hydrogen (H) → B) Two
- Magnesium (Mg) → C) One
- Oxygen (O) → D) Six