Answer:
A I did the exam and I saw A sorry if it is wrong dont have the best of memory
Answer: 54.94atm
Explanation: Please see attachment for explanation
Answer:
16,,24Mg 17,,a24.1 18a mass number of the most abundant isotope
Explanation:
atomic number of Mg is 12 ,therefore its mass number should be the value that is very close to 24.
24.1 is the value of thee most abundant isotope.
True...............................
Answer:
Solid metal.
Explanation:
At room temperature, Chromium (Cr), a transition metal, is a solid.
