A bone contains 6.25% of Carbon -14 it began with. How old is the bone ?

Using the periodic table, complete the table to describe each atom. type in your answers

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 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.