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An atom is made of smaller particles called protons, neutrons, and electrons. Protons and nuetrons are in the nucleus.

The number of protons in a nucleus is the atomic number and defines the type of element the atom forms. The number of neutrons determines the isotope of an element. For example, the carbon-12 isotope has 6 protons and 6 neutrons, while the carbon-14 isotope has 6 protons and 8 neutrons. If the numbe of protons were to change, it would no longer be carbon.

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Which particles in an atom can increase or decrease in number without changing the identity of the element?

Neutrons


Which of these can vary without changing the identity of an element number?

The mass number can vary without changing the identity of an element, as it represents the number of protons and neutrons in the nucleus. Conversely, changing the number of protons would change the identity of the element, as it defines the element's atomic number.


What subatomic particles gives an atom its identity?

Protons are the subatomic particles that give an atom its identity. The number of protons in the nucleus determines the element's atomic number, which in turn defines the specific type of atom.


Which count of substance particles given an atom its unique identity as an element and represents its atomic number?

This is the number of protons.


What is The property that allows us to add zero to a number without changing the value of the number.?

The fact that 0 is the additive identity.


How many particles are there in the world?

There is no exact number of particles in the world as particles are constantly moving and changing. However, estimates suggest that there are around 10^80 particles in the observable universe.


Which subatomic particle causes the mass number to change but has no effect on the identity of the element?

Neutrons are the subatomic particles that contribute to the mass number of an atom without affecting its chemical identity. They can be added or removed from the nucleus during nuclear reactions, altering the atom's isotopic mass without changing its elemental properties.


What of these subatomic particles are represented by atomic number?

Protons are the subatomic particles represented by the atomic number of an element. The atomic number is equal to the number of protons in the nucleus of an atom, which determines the element's identity on the periodic table.


Why does the number of proton in an atom determine the identity of the element?

Because the protons keep their integrity/identity whilst the electrons act as 'glue' binding all the subatomic particles together.


What are similarities between ions and isotopes?

Ions and isotopes are both atoms of a given element with a different number of particles. While the number of protons in an element never change, the number of neutrons and electrons can. In an ion their is a different number of electrons, changing the charge, but having a negligible effect on the mass. Among isotopes the number of neutrons varies, changing the atomic mass but not the charge.


The number of positively charged particles in atoms of a given element?

The number of positively charged particles in atoms of a given element is equal to the number of protons in the nucleus of the atom. This number is referred to as the atomic number of the element and it determines the element's identity on the periodic table.


What are all the properties of math?

Distributive Property: distribute base number, Commutative Property: changing order doesn't change answer, Associative Property: changing gouping doesn't change answer, Identity Property of Addition: any number plus zero equals that number, Identity Property of Multiplication: any number multiplied by one equals that nuber, Zero Property: any number multiplied by zero equals zero