What are the group 1a and group 7a elements examples of? representative elements transition elements nonmetallic elements noble gases?

When curium-242 is bombarded with an alpha particle, two products are formed, one of which is a nudge on. what is the other product

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.

What is a metal replacement reaction