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What two things are a alpha particle made up of?
Protons and Neutrons
What two things are the nucleus made of?
At the simplest level of description, a nucleus contains protons and neutrons.
What are two things added together to get atomic mass?
Number of protons PLUS number of neutrons.
An atoms mass number equals the combination of what two things?
The mass number of an element is equal to the sum of the elements neutrons and protons.
What two things make up the nucleus of an atom '?
Protons and neutrons make up the nucleus of an atom. Protons have a positive charge, and neutrons have no charge. Electrons orbit around the nucleus.
What two things are smaller than neutrons?
Protons and electrons are both smaller than neutrons. Neutrons are composed of three quarks, while protons have two up quarks and one down quark, and electrons are fundamental particles with no substructure.
An atom of which element contains two neutrons?
Two isotopes have two neutrons: 3H and 4He.
What atom has two protons and two neutrons?
It is helium, specifically the helium-4 isotope, that is composed of two protons and two neutrons.
What is the composition of an alpha particle, which consists of two protons and two neutrons?
An alpha particle is composed of two protons and two neutrons.
The nucleus of an atom is made of what?
There are just two things that make up atomic nuclei, and those are, protons and neutrons. All nuclei have these, except for the hydrogen one isotope which contains only one proton and no neutrons.
How many neutrons are in helium?
A helium atom typically has two neutrons. This gives helium a total of four particles in its nucleus (two protons and two neutrons), which contributes to its atomic mass of approximately 4 atomic mass units.
How many electronsprotonsand neutrons does helium have?
Helium has two protons, and, in its neutral state, two electrons. It can have either one or two neutrons.
