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How can the number of protons electrons and neutrons be calculated when giving the mass number?
Wiki User
∙ 12y ago
The atomic number must be known along with the mass number. Then the number of protons or electrons is the same as the atomic number, and the number of neutrons is the difference between the mass number and the atomic number.
Wiki User
∙ 12y ago
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How many protons electrons and neutrons are in a carbon 12 atom?
Answer Firstly, all carbon atoms have only 6 protons. Most of them have 6 neutrons (giving an atomic weight of 12 a.m.u.). Some have 8 neutrons (giving an atomic weight of 14 a.m.u.). These atoms are called isotopes. They are the same chemical element, and react the same in chemical reactions, but the different numbers of neutrons make them slightly different. When atoms of the same element appear with different numbers of neutrons in the nuclei, we call the variations on the theme isotopes of that element.
An atom that has 3 protons 4 neutrons and 3 electrons has an atomic number of?
The number of protons an atom has is equal to its atomic number. In this case, there are 3 protons, so its atomic number is 3 and this is lithium (Li), the third element on the periodic table. Atomic mass is sum of the number of protons and neutrons in the nucleus. Here, that is 3 and 4, respectively, giving our atom an atomic mass of 7. The number of electrons does not affect either the atomic number or the atomic mass, but instead determines the bonding properties of the atom and whether it has a charge. If the number of electrons is equal to the number of protons, as is the case here, the charge is neutral (0). If there are more electrons than protons, the atom will be negatively charged (5 electrons and 3 protons --> charge = -2), and if there are more protons than electrons, the atom will be positively charged (2 electrons and 3 protons --> charge = +1).
Is an anion an ion with more electrons than protons giving it a negative charge?
Yes, an anion is an ion with more electrons than protons giving it a negative charge.
What types of particles are protons neutrons electrons?
These subatomic particles are generally considered the building blocks of atoms. The electron is an elementary particle, while the proton and neutron are composite particles that are made up of quarks. Links can be found below for more information.
Which part of an atom is positively charged and which part is negatively charged?
It is the nucleus of an atom that is positively charged. You'll recall that an atom is made up of protons, neutrons and electrons (hydrogen-1 excepted). And the protons and neutrons hang out in the nucleus, giving it an overall positive charge because the proton has a positive change.
An atom is electrically neutral because?
An atom has no electrical charge because the negative charge of the electrons counteract the positive charge of the protons and the neutrons in the nucleus have a neutral charge. For example, Carbon has 6 electrons(-6 charge) and has 6 protons(+6 charge). Giving it an atomic weight of 12 and a charge of 0. The 6 neutrons do not change this charge, they keep it the same because they are neutral. (:
How many electrons and protons does Br have?
Br has an atomic number of 35 giving it 35 protons. Since it has a charge of 1- it will have 36 electrons to form a octet.Br- will have 35 protons and 36 electrons. The negative charge indicates it gained an electron.
How may protons neutrons and electrons are in isotope?
All the elements on the periodic table differ in their atomic number (the number of protons in the nucleus) for example carbon has 6 protons in its nucleus). Any change in the number of protons and the element is given a different name (7 protons would be nitrogen). As well as protons, there are neutrons in the nucleus. The number of these can change within a single element, for example the most common form of carbon (carbon 12) has 6 neutrons and 6 protons giving it an atomic mass of 12, however a less common carbon 13 isotope exists which has 7 neutrons and 6 protons (hence has an atomic mass of 13). Now with respect tp the electrons, in a neutral element (one with no negative or positive charge) tho number of electrons always equals the number of protons (so carbon will have 6 electrons in both of its isotopes).
What is the difference between a proton an an electron?
Protons and Electrons are actually quite different. Protons have a positive electric charge, while electrons have a negative electric charge. Atoms usually have the same number of protons and electrons, which means they balance each other out giving a neutral electric charge. If there are more of either protons or electrons, the atom will have an overall charge. (Negative or Positive). Protons are also located in the nucleus with the neutrons, while electrons are located in the outer shells surrounding the nucleus.
How many protons electrons and neutrons are in a carbon 12 atom?
Answer Firstly, all carbon atoms have only 6 protons. Most of them have 6 neutrons (giving an atomic weight of 12 a.m.u.). Some have 8 neutrons (giving an atomic weight of 14 a.m.u.). These atoms are called isotopes. They are the same chemical element, and react the same in chemical reactions, but the different numbers of neutrons make them slightly different. When atoms of the same element appear with different numbers of neutrons in the nuclei, we call the variations on the theme isotopes of that element.
An atom that has 3 protons 4 neutrons and 3 electrons has an atomic number of?
The number of protons an atom has is equal to its atomic number. In this case, there are 3 protons, so its atomic number is 3 and this is lithium (Li), the third element on the periodic table. Atomic mass is sum of the number of protons and neutrons in the nucleus. Here, that is 3 and 4, respectively, giving our atom an atomic mass of 7. The number of electrons does not affect either the atomic number or the atomic mass, but instead determines the bonding properties of the atom and whether it has a charge. If the number of electrons is equal to the number of protons, as is the case here, the charge is neutral (0). If there are more electrons than protons, the atom will be negatively charged (5 electrons and 3 protons --> charge = -2), and if there are more protons than electrons, the atom will be positively charged (2 electrons and 3 protons --> charge = +1).
Is an anion an ion with more electrons than protons giving it a negative charge?
Yes, an anion is an ion with more electrons than protons giving it a negative charge.
What types of particles are protons neutrons electrons?
These subatomic particles are generally considered the building blocks of atoms. The electron is an elementary particle, while the proton and neutron are composite particles that are made up of quarks. Links can be found below for more information.
What is the element yttrium proton electron neutron?
The element Yttrium(Y) contains collectively, protons, neutrons and electrons. Its atomic no. is 39. This tells us that it contains 39 protons, 39 electrons and its commomest isotope contains 50 neutrons. giving it an atomic mass of '89' (39+50). At room STP is is a metal and solid. Discovered by Gadolin in Ytterby in Sweden in 1794,.
What is sulfur made out of?
Sulfur is an active natural life giving element.
How many protrons neutrons and electrons are in sodium?
Just remember the atomic number is the amount of protons and electrons there is 11 in sodium, and 12 neutrons in sodium. To find neutrons you round the atomic mass if needed then subtract it from the number. So sodium's mass is 22.9 so you round it to 23 subtracted by the atomic number, which is 11 giving you 12. Hope that helps
How many neutrons are in most atomic of iodine if the atomic number is 53 and the atomic weight is 126.9?
Most atomic of iodine has 74 neutrons. The atomic weight of iodine (126.9) represents the combined mass of protons, neutrons, and electrons in the atom. Since the atomic number (53) represents the number of protons in the nucleus, subtracting the atomic number from the atomic weight gives the number of neutrons.
