Pennyium has 2 isotopes, Pennyium-24 with an abundance of 67.5% and Pennyium-25 with an abundance of 32.5%. Find the AAM for Pennyium.
2 points

In numbering carbon atoms in the parent chain of a hydrocarbon, why would you number from right to left, rather than left to right

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

An object displaces 652 ml of water. the volume of the object is: 0.652 cm³ 6.52 cm³ 65.2 cm³ 652 cm³