They don't
They group elements with the same number of valence electrons.
The valence electrons of an element determine how that element bond and how many bonds it forms.
So elements with the same number of valence electrons tend to have similar chemical properties.
By discovering the elements proton number, it became easier for scientists because the elements had similar properties. And they could arrange it by increasing proton number, valence electrons or electronic configuration.
Each chemical element has a different number of protons; the number of neutrons can be similar.
Similar to all other chemical elements seaborgium contain protons, neutrons and electrons.
The individual protons and neutrons are basically indistinguishable; they don't have different names.
Each element has an atom that has different amounts of protons, neutrons, and electrons. This is the case for the element's atomic number and atomic mass. They are arranged by their differences on the periodic table of the elements. Most elements are metals. The three categories for the elements are metals, nonmetals and metalloids. ----
elements down are families or similar traits elements across is groups same proton count
Electrons have the least amount of energy compared to protons and neutrons. Protons and neutrons have similar amounts of energy in an atom, as they are found in the nucleus and contribute to the majority of the atom's mass.
Similar to all other chemical elements the uranium atom has protons, neutrons and electrons; uranium is also unstable and radioactive.
For the most part at the moment our Sun is made up of hydrogen fusing into helium, they account for 74.9% and 23.8% of the suns mass other elements known as metals account for less than 2% of the mass. The most abundant metals are oxygen (roughly 1%), carbon (0.3%), neon (0.2%), and iron (0.2%). When the sun runs out of hyrdogen to fuse it will start to convert Helium in to Carbon, at this point life on earth will not be viable.
Apart from a few, almost all elements have isotopes. They are almost similar except the number of neutrons they have.
they are alike because they all have mass ther diffrent because there lines, and isotpes
The organizational tool used by scientists to order the elements by atomic number and similar properties is called the periodic table. It is a grid that arranges elements in rows and columns based on their atomic structure, allowing for easy comparison of elements with similar characteristics.