Atoms with fewer than 4 valence electrons want to give away their electrons to become what

Stable, Cation, Donor Atom

Explanation:

When an atom has less than 4 electrons in its valence shall, it tends to lose those electrons to becomes stable. Because an atom becomes stable when its valence shell is complete. So, when it loses the electrons its valence shell becomes complete. Also, after the loss of the electrons a positive charge is developed on the atom and it becomes an cation or donor atom.

Hence, there can be multiple answers to this question.

Atoms with fewer than 4 valence electrons want to give their electrons to become Stable, Cation, Donor Atom.

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation: