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Atomic number and mass number of ordinary atoms, using helium as an example. The atomic number (Z) is also the number of protons (np). The Mass number (A) is the total number of neutrons and protons.
Electron shells of the first ordinary elements of the periodic table. In chemistry and atomic physics, an electron shell may be thought of as an orbit followed by electrons around an atomic nucleus.
Simple model of atom structure with electrons orbiting nucleus of three protons and neutrons. Science for kids. Cartoon style vector illustration.
Germanium icon. Mendeleev Table Element
Copernicium symbol. Element number 112 of the Periodic Table of the Elements - Chemistry - Green square frame with black background
Modern Periodic Table of the Elements with atomic number, element name, element symbol and atomic mass, in english language
Helium symbol. Chemical element of the periodic table. Vector illustration.
Illustration of chemistry, The periodic table of the elements, Nickel, Copper, Zine and Gallium atom, properties of the chemical elements exhibit a periodic dependence on their atomic numbers
Meitnerium symbol. Element number 109 of the Periodic Table of the Elements - Chemistry - Green square frame with black background
Hydrogen symbol. Chemical element of the periodic table. Vector illustration.
Illustration of chemistry, The periodic table of the elements, Boron, Titanium, Scandium and Vanadium atom, properties of the chemical elements exhibit a periodic dependence on their atomic numbers
Illustration of chemistry, The periodic table of the elements, Silicon, Sulfur, Potassium and Argon, properties of the chemical elements exhibit a periodic dependence on their atomic numbers
Gold symbol. Chemical element of the periodic table. Vector stock illustration.
Shapes of Atomic Orbital: s orbitals radial nodes 1s, 2s and 3s
Simple Periodic Table of the Elements with atomic number, element name, element symbol and atomic mass, in english language
Chemical Isotopes infographic diagram with example of isotopes of Hydrogen Lithium Carbon and Oxygen atoms showing atomic weight number of protons and neutrons for chemistry science education
Illustration of chemistry, The periodic table of the elements, Chromium, Manganese, Iron and Cobalt atom, properties of the chemical elements exhibit a periodic dependence on their atomic numbers
Zinc chemical element. Common element on Earth. Colored icon with atomic number and atomic weight. Chemical element of periodic table.
Calcium chemical element. Calcium is a soft alkaline earth metal, one of the most abundant elements on Earth.
Illustration of chemistry, The periodic table of the elements, Hydrogen, Oxygen, carbon and Nitrogen atom, properties of the chemical elements exhibit a periodic dependence on their atomic numbers
Vector design for banner, presentation, web page, card, labels or posters.
Magnesium symbol. Chemical element of the periodic table. Vector stock illustration
Magnesium symbol. Chemical element of the periodic table. Vector illustration.
Periodic Table of element group VI Polonium
Periodic table of elements. Simple table with symbols of chemical elements. Black outline vector illustration.
Atom Cadmium. This diagram shows the electron shell configuration for the Cd atom
Illustration of an atom with name
Illustration of chemistry, The periodic table of the elements, Boron, Titanium, Scandium and Vanadium atom, properties of the chemical elements exhibit a periodic dependence on their atomic numbers
Calcium symbol icon vector illustration design
Illustration of chemistry, The periodic table of the elements, magnesium, chlorine, sodium and neon atom, properties of the chemical elements exhibit a periodic dependence on their atomic numbers
Periodic Table of element showing electron shells
Illustration of chemistry, The periodic table of the elements, Helium, Lithium, Aluminum and Calcium atom, properties of the chemical elements exhibit a periodic dependence on their atomic numbers
Periodic Table of element showing electron shells
Periodic Table of element group I the alkali metals
Illustration of chemistry, The periodic table of the elements, Silicon, Sulfur, Potassium and Argon, properties of the chemical elements exhibit a periodic dependence on their atomic numbers
Illustration of chemistry, atomic radius periodic table, Atomic radius is the distance from the atom's nucleus to the outer edge of the electron cloud, Atomic size, chemical elements
Illustration of chemistry, The periodic table of the elements, is a tabular display of the chemical elements, properties of the chemical elements exhibit a periodic dependence on their atomic numbers
Main isotopes of Hydrogen. Protium, Deuterium (D) and Tritium (T) are the three naturally occurring isotopes of the chemical element hydrogen. They differ in number of protons and their atomic weight.
Periodic Table of element group I the alkali metals
Bohr model diagram of helium He in atomic physics
Periodic Table of element group I the alkali metals
Oxygen, atom model. Chemical element with symbol O and with atomic number 8. Bohr model of oxygen-16, with an atomic nucleus of 8 protons and 8 neutrons, and with 8 electrons in the atomic shell.
Periodic Table of element group VI
Bohr model of the Silver atom. electron structure of Silver
Carbon, atom model. Chemical element with symbol C and with atomic number 6. Bohr model of carbon-12, with an atomic nucleus of 6 protons and 6 neutrons, and with 6 electrons in the atomic shell.
Periodic Table of element group IV
Carbon Isotopes Infographic Diagram showing comparison of their nucleus number of protons and neutrons how common stable and radioactive for chemistry science education poster vector
Periodic Table of element group I the alkali metals
Periodic Table of element group II the alkaline earth metals
Periodic Table of element group VIII The noble gases
Periodic Table of element group VII The halogens
Periodic Table of element group III
Periodic Table of element group VIII The noble gases
Periodic Table of element group VII The halogens
Periodic Table of element group II the alkaline earth metals
Isotope vector illustration. Labeled scheme with hydrogen particles. Explanation diagram with carbon protons and electrons. Variants of a particular chemical element which differ in neutron numbers.
Periodic Table of element group I the alkali metals
Bright color vector design for science, biology, physics, chemistry company.
Atom as a particle and wave. Atom diagram with nucleus, protons,neutrons, electrons isolated over dark blue background. Cartoon vector illustration in flat style.
Periodic Table of element group II the alkaline earth metals
Periodic Table of element group I the alkali metals
Vector design for banner, presentation, web page, card, labels or posters.
Numbers set logos with atoms orbits. Bright color vector design for your science, biology, physics, chemistry company.
Bright vector design for science, biology, physics, chemistry company.
Atom Chlorine. This diagram shows the electron shell configuration for the Chlorine atom
Bright vector design for science, biology, physics, chemistry company.
Bright vector design for science, biology, physics, chemistry company.
Number seven logo with atoms orbits. Bright color vector design for science, biology, physics, chemistry company.
Periodic Table of element group II the alkaline earth metals
Bright vector design for science, biology, physics, chemistry company.
Bright vector design for science, biology, physics, chemistry company.
Zinc chemical element. Common element on Earth. Colored icon with atomic number and atomic weight. Chemical element of periodic table.
Bright vector design for science, biology, physics, chemistry company.
Helium, atomic model. Chemical element and noble gas with symbol He and atomic number 2. Bohr model of helium-4, with atomic nucleus of 2 protons, 2 neutrons, and with 2 electrons in the atomic shell.
Barium chemical element. Chemical symbol with atomic number and atomic mass. illustration
Bright color vector design for science, biology, physics, chemistry company.
Vector design for banner, presentation, web page, card, labels or posters.
Number three logo with atoms orbits. Bright color vector design for science, biology, physics, chemistry company.
Periodic Table of element group III Boron
Periodic Table of element Transition metals
Periodic Table of element group II the alkaline earth metals Magnesium
Bright color vector design for science, biology, physics, chemistry company.
Periodic Table of element Transition metals
Periodic Table of element Transition metals
Number nine logo with atoms orbits. Bright color vector design for science, biology, physics, chemistry company.
Zinc chemical element. Chemical symbol with atomic number and atomic mass. illustration
Carbon element with symbol C and atomic number 6.Isolated molecular structure of carbon on white background.protons,neutrons and electrons labeled nucleus.design for chemical model,education,biology.
Barium chemical element. Chemical symbol with atomic number and atomic mass. illustration
Periodic Table of element group VII The halogens
Periodic Table of element group I the alkali metals Sodium Na
Periodic Table of element group II the alkaline earth metals
Periodic Table of element Transition metals
Periodic table element gallium color icon. Set of chemical sign color icon. Signs and symbols collection icon for websites, web design, mobile app on white background
Chinese Mandarin version of the Modern Periodic Table of the Elements with atomic number, element name, element symbol and atomic mass
Silicon Symbol Illustration On Blackboard With Chalk
Periodic Table of element group I the alkali metals Rubidium Rb
Periodic Table of element group VI Selenium
Alpha particle vector illustration. Labeled atomic ion process explanation infographic. Structure scheme with electron, proton and neutron. Concept of parent nucleus, emitted particle and daughter.
Periodic Table of element showing electron shells
Periodic Table of element group II the alkaline earth metals