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How do you find the number of neutrons in an atom if that number is not told to you?
Wiki User
∙ 9y ago
if you arent given the atomic numbert for an element - where could you find it?
Wiki User
∙ 14y ago
Wiki User
∙ 9y agoBy subtracting number of protons from Atomic Mass. Number of neutrons can be determined.
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How many electrons does an atom of carbon have if it is represented by this symbol 12 c 1-?
12C- the singly charged anion of carbon 12 has 7 electrons. Hopefully the question was 126C- - how many electrons- as at least in that you you are told the atomic number (6) as well as the mass number (12) as you need the atomic number to tell you how many electrons are in the neutral atom.
Why electrons revolve around the nucleus in anti-clockwise direction?
Who told you so: turning an atom upside down will make an anti-clockwise revolution in to a clockwise and vice verse!
The increase in protons positive charge?
yes protons do have and positive charge....my science teacher told me
What is the period number for cobalt?
i think the answer is 9 i dont really know my friend told me
How many electrons would be present in the valence shell of a mercury atom?
200because the pizza guy came to my houseand i asked him the same question and he told me 200....or maybe that was the bill??
How many neutrons does an atom have if it has an atomic mass of 20 and an atomic number of 45?
The nucleus is where all the mass of the atom is to be found and every nucleus is made of Protons and Neutrons which have about the same mass. Together these therefore give the atom its Mass Number. Thus if you know the Mass Number you know how many Protons and Neutrons the atom contains. If you are then told how many Neutrons there are, a simple subtraction of this number from the Mass Number will give you the number of Protons. The number of Protons in an atom defines what is called its "Atomic Number" and this is unique to each element. You can then look up the Atomic Number in a Periodic Table of the Elements and find out which element has that number.
What is the number of protons in an nucleus of an atom?
that is called the atomic number or the proton numberthey r both correcti no Bcuz my teacher told me
What is the number of proton in the nucleus of an atom?
that is called the atomic number or the proton numberthey r both correcti no Bcuz my teacher told me
What subatomic particles comprise the nucleus?
The two Subatomic particles which are in the Nucleus of an Atom is the Up and Down quark. When we think about the Nucleus of an Atom it is made up with Neutrons and Protons. Both Neutrons and Protons are made up with Quarks (a type of Subatomic Particle) Neutrons have to Down quarks and one Up quark. Whilst Protons have two Up quarks and one Down quark. So we can see that the Nucleus of an Atom is not only made up but dependent on Up and Down quarks.This should answer the Question.
What number remains constant in every atom of an element?
An element will always have the same number of protons. The atomic number(Z) is the number of protons. For example, if you told that an element has 8 protons, all you have to do is look at the periodic table for the element that has atomic number 8. In this case it would be Oxygen, with symbol (O).However, they might have different number of electrons and neutrons.When they have an electric charge they are called ions. You can calculate the ion charge with this formula:Ion charge = # of protons - # of electronsWhen they have different number of neutrons they are called isotopes. You can calculate the mass number(A) with this formula:Mass number(A): #of protons + # of neutrons
She told me not to give it out and I didn't Her dad find her number and call her and she call me if I gave her new number to him I said no three times and told me to be honest or tell the truth?
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What did Rutherford's gold foil experiment tell them about the atom?
It told them that the atom was mostly empty space.
How do you find out what year your mower is?
I have been told it is the first two numbers in your serial number.
How do you find an average of a number if it only tells you the average and how many numbers there are?
Why would you want to "find" the average if you are already told the average? Normally if you are told to "find" some information, that refers to information that isn't known from the beginning.
How atomic mass related isotope?
It isn't, as such. Isotopes of the same element have different numbers of neutrons, and neutrons have a mas of one Atomic Mass unit (amu). So isotopes have different atomic masses, but being told the number of neutrons any isotope has, will not enable you to say what element or atomic mass it had, unless you remembered the details for every single isotope. Even then different elements can have the same number of neutrons. Isotopes do get named after their atomic mass however - uranaium 235 has an atomic mass of 235, for instance.
How is an isotope and mass number related?
It isn't, as such. Isotopes of the same element have different numbers of neutrons, and neutrons have a mas of one atomic mass unit (amu). So isotopes have different atomic masses, but being told the number of neutrons any isotope has, will not enable you to say what element or atomic mass it had, unless you remembered the details for every single isotope. Even then different elements can have the same number of neutrons. Isotopes do get named after their atomic mass however - uranaium 235 has an atomic mass of 235, for instance.
How many electrons does an atom of carbon have if it is represented by this symbol 12 c 1-?
12C- the singly charged anion of carbon 12 has 7 electrons. Hopefully the question was 126C- - how many electrons- as at least in that you you are told the atomic number (6) as well as the mass number (12) as you need the atomic number to tell you how many electrons are in the neutral atom.
