How many neutrons does a standard hydrogen atom have in its nucleus

There will be 0 neutron in standard hydrogen atom

Explanation:

We know that standard hydrogen is denoted by

Means mass number of hydrogen is 1 and atomic number is also 1

So mass number A = 1

And atomic ,that is number of proton number Z = 1

We have to find the number of electrons in standard hydrogen atom

We know that mass number is given by

Mass number = number of proton + number of neutron

1 = 1 + number of neutron

So number of neutron = 1 -1 0

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:

explanation:

v=uf/(u-f)

= 5.-10/(5+10) convex lens has negative focal length