Can you type it out the picture is too blurry to read, sorry.
Answer:
the atomic mass number for boron is 5
Explanation:
hope it helps , pls mark me as brainliest
Answer is: atoms have the greatest kinetic energy in liquid iron (2,000°C).
The average kinetic energy of molecules depends on the temperature.
At high temperature(2,000°C), molecules of iron have greater kinetic energy than molecules of iron at low temperature (1,600°C, 65°C and 25°C)..
Read more on Brainly.com - brainly.com/question/8237916#readmore