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Protons plus neutrons
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∙ 12y ago
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What is the atomic mass for lithium 3?
Lithium is a meta element. Atomic mass of it is 7.
How to tell protons neutrons mass numbers atomic weights from periodic table?
atomic weights is usually the number that has decimal points. so whenever you see a number with decimal point on periodic table, then that is the atomic mass.
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 many protons does an atom with an atomic number of 82 and a mass number of 112.6 have?
the atomic number is the number of protons. the atomic mass is the number of protons plus the number of neutrons. yours is a decimal so it's an average.
Why does the atomic mass on the periodic table progressively changes left to right and top to bottom why?
Because there are increasingly more protons, electrons, and neutrons. Atomic mass is the average number of neutrons in all of the isotopes(different types) of a specific element, meaning you can sometimes have decimal masses. But, the atomic number is never a decimal because the atomic number is just a numbering system for all the elements.
Why atomic mass is always a whole number but atomic weight may be a decimal number?
Atomic mass of isotopes is not a whole number.
What is the atomic mass for lithium 3?
Lithium is a meta element. Atomic mass of it is 7.
What does the decimal tell you in an atomic mass?
that there are stable isotopes of that element
What does the decimal number in an element key represent?
atomic mass
How to tell protons neutrons mass numbers atomic weights from periodic table?
atomic weights is usually the number that has decimal points. so whenever you see a number with decimal point on periodic table, then that is the atomic mass.
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
What To two decimal places what is the relative atomic mass and the molar mass of the element potassium K?
It is 38.96
What is the two decimal places of relative atomic mass and the molar mass of the element potassium K?
It is 39.10
in an element box what does the number with a decimal stand for?
I Believe You Are Referring To The Atomic Mass.
What is atomic mass of zinc rounded to 1 decimal point?
65.465.465.465.4
How many protons does an atom with an atomic number of 82 and a mass number of 112.6 have?
the atomic number is the number of protons. the atomic mass is the number of protons plus the number of neutrons. yours is a decimal so it's an average.
What is a atomic mass for?
the Atomic Mass is how much an element weighs
