Question

question 13 (1 point) molecules or ions with a tetrahedral shape include which of the following? i. cf4 ii. scl4 iii. nh4+ i. only ii. only i.,ii., and iii. i. and iii. only i. and ii. only

Explanation:

• For $CF_4$, carbon has 4 bonding pairs and no lone - pairs around it. According to VSEPR theory, it has a tetrahedral shape.
• For $SCl_4$, sulfur has 4 bonding pairs and 1 lone - pair. Its electron - pair geometry is trigonal bipyramidal and molecular shape is seesaw.
• For $NH_4^+$, nitrogen has 4 bonding pairs and no lone - pairs. According to VSEPR theory, it has a tetrahedral shape.

Answer:

D. i. and iii. only