Imagine clark kent is investigating the half-life of krypton-8 and finds that it is approximately 10.8 years. what fraction of the initial amount of krypton-8 would still be remaining after 65 years?

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided