An example of radiation can be from a fire since the firs is letting off heat without contact. An example of convection can be boiling water since there are molecules moving in the water (a fluid). An example of conduction can be a tea spoon in a cup of hot tea, the heat is getting transferred froma hot object to a cool object.
Your answer is J, because electrons orbit the nucleus of an atom and have a negative charge
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The answer is D. 12
Hope i will help you angain sometime :)
~~~~~SoraKeyblader~~~~~
To relate the quantity of a substance to the amount of heat transferred and heat capacity, temperature, number of moles is given by
q=ncpΔT
where
n is number of moles
cp is molar heat capacity
ΔT=Tfinal−Tinitial is the temperature difference
Explanation:
The charge of a helium atom is zero
It is neutral because
The number of unit negative charges = number of unit positive charges
One unit negative charge = -1.6 x 10^(-19) which is basically the charge of an electron
One unit positive charge = +1.6 x 10^(-19) which is basically the charge of a proton
A helium atom has 2 protons and 2 electrons, so it is neutral
NOTE: an alpha-particle (He2+) is a charged helium atom it has 2 protons and 0 electrons. Charge of an alpha particle = +3.2 x 10^(-19).
