73.8k views
2 votes
A. 234
B. 92
C.90
D. 238

A. 234 B. 92 C.90 D. 238-example-1
User Forpas
by
7.3k points

1 Answer

2 votes

Answer:

90

Step-by-step explanation:

proton number is 90 which is also its atomic number

User TXK
by
8.8k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.