Atoms and ions are held together by.. A.) nuclear bonds
B.) Stick bonds
C.) physical bonds
D.) Chemical bonds

chemical bonds

Explanation:

The atoms in chemical compounds are held together by attractive electrostatic interactions known as chemical bonds. Ionic compounds contain positively and negatively charged ions in a ratio that results in an overall charge of zero. The ions are held together in a regular spatial arrangement by electrostatic forces.

a1="Ada Lovelace"

a2= input("Enter Password: ")

def checkpassword(a2):

   if a2 == a1:

       print("Correct Password")

   else:

       print("Wrong Password")

   return 0

Explanation:

The string as password is given. Now we ask the user to input the password, and this is compared to the original password. If the passwords match, print password matched, or else print wrong password.