The size of an atom is dependent on the type of atom the number of protons, neutrons and electrons it contains. Each atom on the periodic table has a different size.
In approximate terms, a proton and neutron are equal to 1.67*10^-27 kilograms and an electron is equal to 9.11*10^-31 kilograms. The number of protons and neutrons in an atom can be determined by its atomic number, while the number of electrons can be determined by its atomic weight and atomic number. Each atom on the periodic table has a different general size based on its protons, neutrons and electrons. In general, atomic size increases going down the columns of the periodic table and decreases from left to right.Learn More
The atomic number represents the number of protons in an atom. Elements on the periodic table are organized in order of ascending atomic numbers. The atomic number of an atom never changes; all atoms of an element contain the same number of protons and, thus, have the same atomic number.Full Answer >
The atomic number of an atom is the number of protons that resides in the nucleus, while the mass number is the number of protons and neutrons combined. The atomic number determines the type of element an atom, while the number of neutrons determines the isotope of the element. Many elements naturally occur in the form of several different isotopes.Full Answer >
The number of protons that are found is an atom is referred to as the atomic number. This number is also referred to as the proton number.Full Answer >
To find the number of neutrons in an atom, subtract the number of protons in the atom from the atom's mass. These numbers are found on the periodic table of elements.Full Answer >