Answer:
Option b
Step-by-step explanation:
- Calcium has atomic no-20
- Hence it has 20 protons
- Silicon has atomic no 14
- Hence it has 14protons
Total:-

Answer
7,3'
hope this helps give me a 5-rate and a thanks!
Answer:
B) 25
25 tickets were sold on August 11, 2007.
Step-by-step explanation:
The dot is between 20 and 30 which means it's 25.
Answer:
B
Step-by-step explanation: