A student has a piece of an unknown mineral. He records several of its properties. Which of these are properties can he use to help identify the mineral?

its crystal shape
its mass
the length of its longest side
whether it is attracted to a magnet
whether it is fluorescent

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.

the formula for the conversion of temperature from degree celsius to kelvin is:

the sample of water at is converted to kelvin temperature by using the above formula as:

on comparing the two samples of water at or we can say that at and at respectively. the difference between the temperatures of two samples of water is:

hence, one can say that the sample of water at is greater than the sample of water at by .