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What cannot change in an atom is it protons neutrons or electrons?
Wiki User
∙ 12y ago
An atoms protons cannot change.
The number of neutrons can change (gain or lose) to form an isotope (ex. Hydrogen naturally has no neutrons. But it can gain neutrons to form Heavy Hydrogen, or in other words, a Hydrogen Isotope).
An atom can gain or lose electrons to form an ion. Usually an atom will gain or lose electrons to fill its valence (outermost) shell. It takes just as much energy to gain an electron as it is to lose one, so an atom will always look to lose or gain the least amount of electrons possible. (ex. Oxygen has 6 valence electrons. It will look to gain 2 electrons, rather than lose 6).
Protons: DO NOT CHANGE
Neutrons: Can change to form an isotope
Electrons: Can change to form an ion
Wiki User
∙ 12y ago
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How man protons and neutrons does aluminum ion Al 3?
13 protons and 14 neutrons. The fact that its an ion doesn't change that ... only the number of electrons.
How many protons and neutrons and electrons does the element gold have?
In a regular sample of the element of gold, meaning no change done to it, then there will be 79 protons and 118 neutrons
How many subatomic particles does krypton have?
Protons 36 Neutrons 48 (for the most stable isotope, Kr-84) Electrons 36
Why doesnt the number of protons change for a single element while the neutrons and electrons can?
The protons don't change because if the number of protons changes, the type of element the atom is changes. The number of protons determine the species of the atom.
How many neutrons and protons are in an nitrogen atom?
There are 7 electrons in the stable variation of Nitrogen (the only time nitrogen isn't 7 electrons is when it is an ion, then it has 10 electrons). To find the amount of neutrons, you take the average atomic mass (14.007) and subtract the amount of protons (which is the same as the atomic number in an element, so 7) 14.007-7=7.007, 7.007 is the average amount of neutrons. There are different isotopes (atoms with different numbers of neutrons) however, the most common is 7 neutrons, but there is a Nitrogen atom with 8 neutrons, and there are more variations of isotopes that change the average amount of neutrons.
How man protons and neutrons does aluminum ion Al 3?
13 protons and 14 neutrons. The fact that its an ion doesn't change that ... only the number of electrons.
The electric change of protons in the nucleus is the?
Protons have a positive charge, neutrons are neutral, and electrons have a negative charge.
How many protons and neutrons and electrons does the element gold have?
In a regular sample of the element of gold, meaning no change done to it, then there will be 79 protons and 118 neutrons
Where arw protons and neutrons found?
Matter and change a small amount of matter in the universe. Matter has mass and volume and is made of atoms. (atoms have) protons neutrons and electrons. Protons neutrons and electrons are found in everything from (pen,book,bread,pillow case, etc.)
Which particles that make up an atom are involved in nuclear reactions?
Protons, electrons, and neutrons are the subatomic particles that are involved in nuclear reactions.
Why is the atomic mass the same as the total number of protons and neutrons in the nucleus?
The neutrons and protons are in the nucleus which determines the element/isotope. The electrons however define the net charge (ie. positive if there are less electrons then protons and negative if more) and it can be changed more easily, than changing the amount of neutrons . Another reason is that electrons have a tiny mass compared to the protons and neutrons and it wouldn't change the mass number by all that much.
How many subatomic particles does krypton have?
Protons 36 Neutrons 48 (for the most stable isotope, Kr-84) Electrons 36
Is it true that the nucleus is an atomic particle that has no atomic change?
the nucleus is made of protons and neutrons together. the protons have a positive charge and the neutrons have no charge [electrons circle the nucleus and have a negative charge]
Consider the silicon 29 isotope How many protons and neutrons and electrons will it have?
All silicon atoms have 14 electrons and 14 protons. That is a rule that every silicon atom must follow. On the periodic table, the number next to the atom is the number of electrons/protons in an atom (silicon is the 14th element listed on the periodic table, hence the 14 electrons and 14 protons). The number "29" is the number of protons and neutrons together. This number can change with changing isotopes. So, if every silicon atom must have 14 protons, and 29 is the number of protons and neutrons together, so the number of neutrons must be 29 minus 14. Final: 14 protons 14 electrons 15 neutrons
How would the result of Thomsons experiment change if the beam were a stream of neutrons instead of a stream of electrons?
The number of protons and electrons would be diffrent
What effect produced by changing the number of neutrons in the nucleus of an atom?
What differentiates one element from another (like Hydrogen from Helium) is the number of protons in the nucleus. When protons are added (as happens in nuclear fusion) or subtracted (nuclear fission), the element transmutes into another element. When the number of Protons are changed, both the Electrons and Neutron (numbers) will change too. Protons are paired with electrons. Protons + Electrons = Neutrons, thus reinforcing that both the Electrons and Neutrons will change when the number of Protons has.
Why doesnt the number of protons change for a single element while the neutrons and electrons can?
The protons don't change because if the number of protons changes, the type of element the atom is changes. The number of protons determine the species of the atom.
