one of the chemical element in the fourth row..
i think... pretty sure LOL :)
The atomic weight (not mass) increase from left to right in a period.
The atomic mass will increase. As you go down a group in the periodic table the atomic number rises, this increase in the number of protons is accompanied by an increase in the number of neutrons to stabilise the nucleus, and both together lead to an increase in atomic mass.
Atomic mass generally increasing with atomic number, although there are a few exceptions.
No element in period 3 has an atomic mass of 12.
Because the periodic table is organized by atomic number, not by atomic mass. The general trend in the periodic table is a higher atomic mass as you go up atomic number, but there are exceptions.
The atomic weight (not mass) increase from left to right in a period.
The atomic mass increases down a group.
The atomic mass will increase. As you go down a group in the periodic table the atomic number rises, this increase in the number of protons is accompanied by an increase in the number of neutrons to stabilise the nucleus, and both together lead to an increase in atomic mass.
Atomic mass generally increasing with atomic number, although there are a few exceptions.
It increases as you move to the right or go down
No element in period 3 has an atomic mass of 12.
Because the periodic table is organized by atomic number, not by atomic mass. The general trend in the periodic table is a higher atomic mass as you go up atomic number, but there are exceptions.
The atomic mass of hafnium is approximately 178.49 atomic mass units.
yes, properties of an element depends on its atomic number and atomic mass unless it is an exception and the atomic number and atomic mass of unknown elements are known by placing it in periodic table
.The atomic mass increases
No. Atomic mass is the atomic number plus the number of neutrons. The only exception to this is the most common isotope of hydrogen, which has 1 proton and no neutrons, thus both the atomic mass and number are 1.
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