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How do you know the number of protons electrons and neutrons in the 1st 20 elements?
Wiki User
∙ 14y ago
Look at the Periodic Table.The bottom number on an element is the number of protons. The number of electrons will be the same. Subtract the bottom number from the top number to get the number of neutrons. e.g:
103
Rh
45
Protons= 45
Electrons= 45
Neutrons= 58 (103-45)
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoNo easy way, it's just either twice amount of atomic number or close to it.
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What particles make up the mass of an atom?
The number of protons
What are elements having same number of protons and neutrons called as?
Carbon Number of Protons/Electrons: 6 Number of Neutrons: 6
Atoms of different elements always contain different number of what?
well of protons, STOP CHEATING IN WIKIANSWERS AND DO YOUR WORK
Atomic masses of any two elements contain the same number of?
Protons and electrons
How many protons electrons and neutrons in bromine-80?
79? I'm pretty sure the atomic mass of Bromine is 80. Incase you were wrong, the Atomic mass = Number of protons + Neutrons, which is 80. The atomic number is 35, which is the number of protons. Protons = 35. So the No. of Neutrons = 80 ( protons & neutrons) - 35 (protons) = 45 ( No. of neutrons) and Finally for electrons = the number of protons which is 35.
What element is composed of atoms with the same number of neutrons or protons?
Ideally, all elements should have the same number of protons, neutrons and electrons unless they become ionic. This is how elements such as the noble gases remain stable. They the same number of electrons, protons, and neutrons, and a full octet.
What is the number of protons electrons and neutrons in n-14?
Nitrogen-14: 7 Protons, 7 Electrons, 7 Neutrons To work this out in the future for other elements: Protons = Atomic Number Electrons = Atomic Number Neutrons = Atomic Mass - Atomic Number Hope this helps!
What particles make up the mass of an atom?
The number of protons
What are elements having same number of protons and neutrons called as?
Carbon Number of Protons/Electrons: 6 Number of Neutrons: 6
What are the number of protons neutrons and electrons in an element?
Number of protons = Number of electrons = Atomic number Number of neutrons = Atomic number - Number of protons
Do electrons equal the sum of the number of neutrons and protons in an isotope?
No. The number of neutrons has no affect on the number of protons and electrons.
What is the number of neutrons electrons and protons in nitrogen14?
there are 7 neutrons, 7 protons, and....----electrons
Are chemical properties of elements determined by neutrons?
No. The properties of elements are determined by the number of protons, which in turn determines the number of electrons.
How many protons electrons and neutrons does americium have?
Americium has 95 protons and electrons. Number of neutrons: atomic mass of an isotope - number of protons
Atoms of different elements always contain different number of what?
well of protons, STOP CHEATING IN WIKIANSWERS AND DO YOUR WORK
Determine the numbers of electrons protons neutrons 80 35 Br?
Number of Protons: 35 Number of Neutrons:45 Number of Electrons:35
How many electrons protons and neutrons are in uranium?
Uranium isotopes have 92 protons and electrons; the number of neutrons is different for each isotope.Number of neutrons = Mass number - Number of protons
