The electrons, or the electron cloud, of an atom affect how it reacts chemically with other atoms and molecules.
electrons
That's a difficult question to answer, because elements are made of atoms. An atom is the smallest particle of an element that has the properties of that element. Some elements, like the noble gases, can exist as single atoms. Other elements, like oxygen, exist as molecules, such as O2, which is composed of two oxygen atoms covalently bonded to one another. Metal elements are composed of many, many atoms joined by metallic bonding.
No it's the other way around. Elements are made up of atoms.
Apart from the inert gases which are monoatomic all of the other elements bond to themselves and to atoms of other elements.
when they are in contact
Atoms of elements in group 18 (noble gases) do not easily combine with other elements to form compounds.
Temperature affects the average kinetic energy of particles. As temperature increases, particles have higher kinetic energy, which can impact their speed, collisions, and interactions with other particles.
the atomic weights on the periodic table
the atomic weights on the Periodic Table
You have it backwards, all molecules are made from elements. Elements are the categories of atoms (the basic building block.) Though atoms are in turn comprised of electrons neutrons and protons, which are, in turn made up of smaller things. Atoms bind with other atoms to form Molecules or compounds. A molecule is when a non-metal is bound with another non-metal.
Gold is a "Noble Metal", which means its atoms do not readily share electrons with atoms of other elements.
The smallest particle of an element that can exist either alone or in combination with other elements is an atom. Atoms are composed of protons, neutrons, and electrons.