The concept of atomic number had not yet been developed at the time of the first periodic tables, when atoms were still considered "indivisible units" and the concepts of protons, electrons, and neutrons were not yet known.
yes
The subatomic particles that can change in a nuclear reaction are protons, neutrons, and electrons. During nuclear reactions, these particles can be gained or lost, leading to the formation of different elements and isotopes.
Dalton used atoms composed of protons, neutrons, and electrons in his experiment. He proposed that atoms were indivisible and that elements were made up of these fundamental particles.
mendeleev's name for a column of elements was groups.
Dmitri Mendeleev is the scientist who is credited with first arranging and classifying elements into a chart that laid the foundation for the modern periodic table. Mendeleev's periodic table arranged elements by their atomic weight and predicted the properties of unknown elements that were yet to be discovered.
Electrons are the subatomic particles that govern potential chemical reactions among elements. They are responsible for forming chemical bonds between atoms by either sharing, gaining, or losing electrons.
yes
The subatomic particles that can change in a nuclear reaction are protons, neutrons, and electrons. During nuclear reactions, these particles can be gained or lost, leading to the formation of different elements and isotopes.
Electrons are the subatomic particles that make an element reactive. Elements react with one another by gaining, losing, or sharing electrons to attain a more stable electron configuration.
Chemical elements arrangement was the object of study for Mendeleev.
Subatomic particles are the same for all substances that exist everwhere. So to ask "What are the subatomic particles of manganese?" is really not a good question. Manganese is an element. And like all elements, it is made up of atoms. Atoms are made up of.......subatomic particles! (Moledule)(Cation)(Ion)===>Element====>Atom====>Subatomic particle The are three basic subatomic particles: protons, electrons and neutrons. If you really want to get anal about it, you can also find out what neutrons are made up of. I would tell you, but I forgot!
Electrons are shared when elements combine to form molecules. These are subatomic particles with a negative elementary electric charge.
Elements (oxygen being one of them) are composed of subatomic particles; that is, protons, neutrons, and electrons. Subatomic particles make up atoms (hence "sub"atomic). Therefore, it is reasonable to say that oxygen is an atom.
As for all other elements: neutrons, protons and electrons.
It can not be broken down any further unless you electromagnetically separate the nucleus and electrons, which creates subatomic particles.
what did Mendeleev see that elements it into
An element is a substance which cannot be broken down into other elements, but only into subatomic particles, and which is defined by the number of protons in its nucleus.