11.
when curium-242 is bombarded with an alpha particle, two products are formed, one of which is a neutron. what is the other product?
(1 point)

californium-246
californium-245
californium-247
plutonium-239

away from the curb

explanation:

the wheels would then hit the curb if it started to rolling, decreasing the chance of an accident.

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.