What is the nuclear charge for argon with 22 neutrons? ?

'Nuclear charge' is simply the elements atomic number and is always positive. So the information regarding argons number of neutrons is irrelevant. No matter which isotope of an element you are discussing, the 'nuclear charge' will never change. Therefore the answer is 18+. Now, if you are actually looking for the atomic charge you can find this by taking protons (atomic number) and subtracting number of electrons(for an element). To find charge of an ion you can easily refer to the periodic table where you may already know, group 1 is a 1+ charge, group 2 is a 2+ charge, etc. but in this case we are looking at Argon which is a gas so will not be ionic.  

idk

explanation:

dasdad

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.