Answer:
A. No, because we are not given specific values for w and q.
Explanation:
The change of internal energy of a system is:
ΔE = q + w
where q represents heat and w represents work.
It is necessary to know the magnitude and the sign of q and w in order to know if the system's internal energy is increasing or decreasing.
You definitely know that is has 56 protons and 56 electrons because atomic number is proton number and protons=electrons
Answer:
Radioactive decay occurs in unstable atomic nuclei – that is, ones that don't have enough binding energy to hold the nucleus together due to an excess of either protons or neutrons.
Hope this helps!
An atom is the smallest thing ever known to exist. It can only be seen by the eye of a type of telescope.
Q = mcΔt
Q = 50 g x 4.184 J/g°c (100 - 20)°C
Q = 16736 J
