Using the ideas from this section and the periodic table, choose the more reactive metal. cs or na

Explanation:

It is known that both sodium (Na) and cesium (Cs) are group 1 elements. This group is also known as alkali metal group.

Both Na and Cs has one valence electron but size of cesium is much larger than the size of sodium.

This means that larger is the size of atom farther away will be the valence electron(s) from the nucleus. Hence, there will be very less or no force of attraction between the nucleus and valence shell.

Therefore, it will be much easy for a larger atom to lose its valence electron. So, the atom will become more reactive in nature.

Thus, we can conclude that Cs is more reactive than sodium metal.

insects!

explanation:

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: