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An atom of gold with 79 protons 79 electrons and 118 neutrons. What's the mass number?
Wiki User
∙ 15y ago
Atomic Mass is the number of protons plus the number of neutrons so, in the case of gold, the mass number = 79+118 which is 197
Wiki User
∙ 15y ago
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What is the number of neutrons for rubidium-87?
forgive me if i do not remember exactly but i believe a Rubidium atom contains 19 electrons 20 neutrons and 19 protons
Whats a type of number that equals the amount of protons inside a nucleus and electrons outside a nucleus?
Atomic Number
How many neutrons are in water?
In a single molecule of water : 10 protons (1 from each hydrogen and 8 from oxygen)8 neutrons (none from hydrogen and 8 from oxygen)water = H2O 10 electrons (1 from each hydrogen and 8 from oxygen)To work out how many electrons, protons and neutrons in a molecule;Find the ballenced chemical equation - H20 in this caseLook up each element in the periodic table - hydrogen and oxygen in this caseCount the electrons, protons and neutrons - you do this by looking at the top numbers and the bottom numbers for each element. The top number is the "atomic weight" of the element, so the total number of protons and neutrons as each 1 unit of mass. The bottom number is the "proton number" number of electrons and protons (each) so for oxygen where the number is 8, there are 8 protons and 8 electrons. To work out the number of neutrons simply take the bottom number from the top number as you are taking the number of protons away from the total weight to give you whats left, which is the number of protons.Do a little bit more adding - H2O = 2 + 8 electrons= 2 + 8 protons= 0 + 8 neutronsAnd your done. Easy
Whats the difference between chlorine 35 and chlorine 37?
Chlorine-37 has more neutrons in it than Chlorine 35
Which element have no neutrons in its atom?
The most common isotope of Hydrogen lacks a neutron in its nucleus. But there is an isotope, called deuterium, that has one neutron. Additionally, there is a hydrogen isotope that is artificially created that has two neutrons in its nucleus. It is called tritium. A link to the Wikipedia article on the isotopes of hydrogen is provided.
If a neutral atom has a mass of 15 amu and an atomic number of 7 whats the number of protons neutrons and electrons in the atom?
The protons is 7, the neutrons is 8, and the electrons is 22.
How does the combination of electrons protons and neutrons result in the neutral charge of an atom?
wow kid ur dumb if they're are 6 protons 6 neutrons and 6 eletctrons, whats the net charge? 0 the amount of neutrons doesnt really matter...
Whats the difference between atomic mass and mass number?
Atomic mass is the average of the masses of the naturally existing (i.e. mixture of) isotopes of one specific element.The atomic mass number is the sum of the protons and neutrons in the nucleus of an atom (specific for one specific isotope).
Whats The Atomic Numbers Are in Copper?
The atomic number of Copper (Cu) is 29. See the Web Links for more information about copper to the left of this answer.
What is the number of neutrons for rubidium-87?
forgive me if i do not remember exactly but i believe a Rubidium atom contains 19 electrons 20 neutrons and 19 protons
Whats the difference between electrons and protons?
Electrons have a negative charge and protons have a positive charge.
Whats a type of number that equals the amount of protons inside a nucleus and electrons outside a nucleus?
Atomic Number
How many neutrons are in water?
In a single molecule of water : 10 protons (1 from each hydrogen and 8 from oxygen)8 neutrons (none from hydrogen and 8 from oxygen)water = H2O 10 electrons (1 from each hydrogen and 8 from oxygen)To work out how many electrons, protons and neutrons in a molecule;Find the ballenced chemical equation - H20 in this caseLook up each element in the periodic table - hydrogen and oxygen in this caseCount the electrons, protons and neutrons - you do this by looking at the top numbers and the bottom numbers for each element. The top number is the "atomic weight" of the element, so the total number of protons and neutrons as each 1 unit of mass. The bottom number is the "proton number" number of electrons and protons (each) so for oxygen where the number is 8, there are 8 protons and 8 electrons. To work out the number of neutrons simply take the bottom number from the top number as you are taking the number of protons away from the total weight to give you whats left, which is the number of protons.Do a little bit more adding - H2O = 2 + 8 electrons= 2 + 8 protons= 0 + 8 neutronsAnd your done. Easy
Whats the number of protons in sodium?
11 Protons
If you round the average atomic mass to the nearest whole number so whats neons atomic weight?
Go to this website www.periodictable/Elements/010/index.html
How are electrons structured in an atom?
a simple nucleus with a the electrons orbiting in whats is best described as an electron cloud. the nucleus includes neutrons and protons and inside of a proton, inside of a neutron you have quarks.
Whats the atomic number of hydrogen?
The atomic number of Boron (B) is 5.The atomic weight of B is 10.811 grams per mole. See the Web Links and the Related Questions to the left of this answer for a Periodic Table and more information about this element.
