Ask
your own question, for FREE!
Chemistry
9 Online
OpenStudy (anonymous):
An atom of copper (Cu) has a mass number of 63 and an atomic number of 29. How many protons does it have? A. 29 B. 34 C. 63 D. 92
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
@stephanos100
OpenStudy (anonymous):
@xo.A
OpenStudy (anonymous):
A?
OpenStudy (anonymous):
Yes A. is right (:
OpenStudy (anonymous):
thanks <3
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
How many elements occur naturally? A. 6 B. 25 C. 90 D. 118
OpenStudy (anonymous):
C?
OpenStudy (anonymous):
Na-23 has 11 protons. How many neutrons does it have? A. 11 B. 12 C. 23 D. 34
OpenStudy (anonymous):
B?
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
Maci:
what are the best stock apps for people who want to start investing?
Twaylor:
genuienly how do i get better self control i keep watcing youtube and theres this
IzzyCookie:
|dw:1792074056138:dw| Uhm, I don't know where to ask this, but I'm in college welding at my community college, and I need help learning vertical welding for
thehearken:
not sure if this is considered spam, im sorry if it is, but does anyone have tips
Maci:
what are the best stock apps for people who want to start investing?
3 days ago
3 Replies
2 Medals
Twaylor:
genuienly how do i get better self control i keep watcing youtube and theres this
6 days ago
3 Replies
0 Medals
IzzyCookie:
|dw:1792074056138:dw| Uhm, I don't know where to ask this, but I'm in college welding at my community college, and I need help learning vertical welding for
1 day ago
9 Replies
1 Medal
thehearken:
not sure if this is considered spam, im sorry if it is, but does anyone have tips
1 week ago
2 Replies
1 Medal
