An element has an atomic number of 77, an atomic mass of 152, and is considered electrically neutral. how many protons, neutrons, and electrons does the element have? select the three correct values. (3 points)

77 protons
38 protons
152 protons
39 electrons
77 electrons
0 electrons
152 neutrons
0 neutrons
77 neutrons
75 neutrons

The required length of the wire is 15.637 m

The power dissipated is 1,216 W

Explanation:

Length (L) = resistance×area/resistivity

Resistance = 19 ohm

Area = 0.001276 in^2 = 0.001276in^2 × (2.54cm/1in)^2 = 8.23×10^-3 cm^2

Resistivity = 1×10^-4 ohm-cm

L = 19×8.23×10^-3/1×10^-4 = 1563.7 cm = 1563.7/100 = 15.637 m

Power = I^2 R = 8^2 × 19 = 64×19 = 1,216 W