Fluorine-18 undergoes positron emission as shown:
18F – 4X+ is
Enter the appropriate values for A and Z and the chemical
symbol for X
A:
Z:
X:

For ai it's atomic number is 13 and it's mass number is 27 how many neutrons does it have

Asa choose the correct set of reaction coefficients to properly balance the following chemical equation according to the law of conservation of mass: __s8 + __o2 ==> __so2 1, 1, 8 1, 8, 1 1, 8, 8 8, 1, 1

I'm learning about the periodic tables and what each subject's configuration is. for example, hydrogen is 1s^1, but i don't understand how you get that. can someone me understand how to figure out how to figure this out? sorry if the question makes no sense, but it would really a lot if you could me understand! you so much if you can!