Question

draw the lewis dot symbols for the following atoms/ions. part 1 of 2 na part 2 of 2 o²⁻

Explanation:

Step1: Determine valence electrons of Na

Sodium (Na) is in Group 1, has 1 valence electron.

Step2: Draw Lewis - Dot symbol for Na

Write 'Na' and place 1 dot around it.

Step3: Determine valence electrons of O²⁻

Oxygen (O) is in Group 6, neutral O has 6 valence electrons. O²⁻ has 2 extra electrons, so 6 + 2=8 valence electrons.

Step4: Draw Lewis - Dot symbol for O²⁻

Write 'O' with a 2 - charge superscript. Place 8 dots (4 pairs) around 'O'.

Answer:

Na: Na•
O²⁻: [ :O: ]²⁻ (with 4 pairs of dots around O)