0
As you move from top to bottom in a group of the Periodic Table, Atomic Mass generally increases. This increase occurs because each successive element has more protons and neutrons in its nucleus, resulting in a greater overall mass. Additionally, the number of electron shells increases, contributing to the size of the atom but not directly affecting atomic mass. However, there can be exceptions due to isotopes and varying natural abundances.
What else can I help you with?
Is the atomic mass on the bottom or top?
At the bottom, the atomic number is at the top.
What happens to the atomic number as you move across a period?
.The atomic mass increases
How do you find atomic mass in an atom?
the atomic mass is on some periodic tables and is the decimal. for example... for carbon the atomic mass is 12.01 on my periodic table that i am looking at go to this website. http:/www.ptable.com. it should have a periodic table and the atomic mass is on the very bottom of each box. for example the atomic mass for bromine is 79.904
How do you tell figure out the atomic mass?
Atomic mass is the number of protons + the number of neutrons in the nucleus of an atom. On the periodic table, the average atomic mass of an element will the be number at the bottom of each box.
How many neutrons does uranium 239 have?
simple, the bottom number that is missing is the atomic number. Pu is plutonium which happens to have the atomic number of 94. subtract the top number (mass number) and the atomic number and you get the amount of nuetrons, so the answer is 145 neutrons. (its an isotope)
Is the atomic mass on the bottom or top?
At the bottom, the atomic number is at the top.
What is the difference between atomic mass unit and atomic mass?
Atomic mass unit is the number on the bottom of the Chemical. However, the atomic mass is the number on the top of the chemical minus the number on the bottom. b.t.w The no. of neutrons = top no. minus bottom no.
Towards the bottom of the periodic table does the atomic mass increase or decrease?
Towards the bottom, atomic mass increases. Atomic number also increases.
Ifthe atomic number increase what happens to the atomic mass?
Nothing. They are not correlated
What happens to the atomic number as you move across a period?
.The atomic mass increases
What do you predict the trend in atomic mass will be going down a group?
The atomic mass increases down a group.
How do you find atomic mass in an atom?
the atomic mass is on some periodic tables and is the decimal. for example... for carbon the atomic mass is 12.01 on my periodic table that i am looking at go to this website. http:/www.ptable.com. it should have a periodic table and the atomic mass is on the very bottom of each box. for example the atomic mass for bromine is 79.904
How do you tell figure out the atomic mass?
Atomic mass is the number of protons + the number of neutrons in the nucleus of an atom. On the periodic table, the average atomic mass of an element will the be number at the bottom of each box.
What happens to the mass and atomic number when there is an alpha decay?
The mass decreases by 4 units and the atomic number by two units.
What is the meaning of the number printed at the bottom of the periodic table?
The atomic mass.
How many neutrons are in alumnium?
14 - Subtract atomic mass(usually bottom #) from atomic number(usually top #).
How many neutrons does uranium 239 have?
simple, the bottom number that is missing is the atomic number. Pu is plutonium which happens to have the atomic number of 94. subtract the top number (mass number) and the atomic number and you get the amount of nuetrons, so the answer is 145 neutrons. (its an isotope)
