Answer: Thermal Energy
Explanation:
Thermal Energy is for anything that relates to heat, so a hairdryer also uses thermal energy
Answer:
Ans. C. physical change
Explanation:
Physical: boiling and melting are physical changes. When water boils no bonds are broken or formed
Sr will always have 38 protons because that is its atomic number. Normally Sr has 38 protons and 49 neutrons yielding an atomic mass of 87. unless you are dealing with an isotope of Strontium in which 3 additional neutrons would give you the 53 neutrons in your answer, (38p, 52n).
Explanation:
Electrons are negatively charged. So it has a -3 charge.
