Electrons are found select one: a. orbiting around the nucleus in circular paths. b. moving around the nucleus in concentric clouds. c. in individual clouds (one electron per cloud) that orbit the nucleus. d. in fixed positions on the rings that surround the nucleus.

neither accurate nor precise.

1.195000

explanation:

total mass=0.0117+0.0137+0.0881+0.0111

total mass= 0.01172kg

total velocity = 0.283-0.743+0.871-0.799+0.155+0.637+0.301=0.102

momentum=mv=0.1172*0.102=1.195000//

you get 2.3=1.21*\frac{a}2 or 4.6=1.21a or a=3.802 (b)

explanation: