Answer:
5. All magnesium atoms have the same number of neutrons
Explanation:
Magnesium (Mg) is a chemical element. Its atomic number (Z) is 12 (number of protons in the nucleus of the Mg atom).
The Magnesium has three stable isotopes: 24Mg, 25Mg and 26Mg. All these isoforms have 12 protons in their atoms (same atomic number), however they vary in the mass number of the atom (M).
The mass number of the atom (M) is equal to the sum of protons and neutrons in the nucleus.
Based on this information we can know how many neutrons each isotope has
24 Mg = 12 protones + 12 neutrons
25Mg = 12 protones + 13 neutrons
26Mg = 12 protones + 14 neutrons
In this way we conclude that <u>not all magnesium atoms have the same number of neutrons</u>
<span>By discovering height and length of a bone forensic experts are able </span>to tell the person’s weight, the racial group to which
the person belongs. With other characteristics of the bones, the experts can discover age, if the person was a male or female and what traumas suffered before.
Laboratory technician,research associate,laboratory manager,research scientist, lead scientist and-principal investigator
Pro I
Meta I
Ana I
Telo I
Pro II
Meta II
Ana II
Telo II
Answer:
D. a continuous rise and fall of water in season oceans
