First atomic theory based on scientific evidence (before it was the greek philosophy.) Scientific evidence law of conservation of mass definite and multiple proportions. MODEL atoms of one element have a different mass of atoms that make up another element. Atoms are the basic unit of matter. ...
Atoms of one element are identical to each other but different from atoms of another element.Atoms combine in specific ratios. Atom is the smallest piece of an element that still represents that element How many atoms can fit into a period? About 7.5 trillion. What does STM stand for? A ...
Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal,
An element's atomic numberis equal to the number of protons in the nuclei of any of its atoms. The mass number of an atom is the sum of the protons and neutrons in the atom. Isotopes are atoms of the same element (same number of protons) that have different numbers of neutrons in t...
of-molecules/.THEDISCOVERYOFATOMS:NATURE'SBUILDINGBLOCKS96termsatomicmassormassnumberThenumberofprotonsplusneu,electronNegativesubatomicparticles;,ionAtomorgroupofatomswithahttps://quizlet/18219878/the-discovery-of-atoms-natures-building-blocks-flash-cards/EcoFriendlyBuildingBlocks|NaturalBlocks|EcoFriendly...
atomic mass the average mass of one atom of an element. periodic table a chart of the elements showing the repeating pattern of their properties. nucleus the central core of an atom containing protons and usually neutrons. protons a small, positively charged particle in the nucleus of the atom...
用Quizlet學習並牢記包含The atoms of an element consist of 5 protons and 5 neutrons. Identify the element.、An atom of an element is made up of 29 protons and 35 neutrons. Identify the element.、State the names of the sub-atomic particles located in the n
Atomic Number Number of protons in an atom's nucleus. Mass Number Sum of the number of protons and neutrons in an atom's nucleus. Isotope atoms of the same element that have different numbers of neutrons. Average Atomic Mass Weighted average mass of the mixture of an element's isotopes. ...
atomic number the number of protons in the nucleus of an atom mass number the sum of the number of neutrons and protons in an atomic nucleus isotope Atoms of the same element that have different numbers of neutrons electron shells An energy level representing the distance of an electron from ...
Isotope Atoms of the same element with different numbers of neutrons Mass number The number of an element's name, representing the sum of its protons and neutrons Atomic Mass Unit (amu) One-twelfth the mass of a carbon-12 atom Atomic Mass The weighted average mass of the isotop...