copper chemical element with atomic number mass and electronegativity values periodic table concept logo |
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| navigate by keyword : copper atomic chemistry periodic element illustration science atom education icon symbol vector sign physics school table design electron graphic chemical scientific system weight laboratory mass mendeleev proton technology material background isolated metal flat molecule substance number structure universe information style lab name white mineral natural button gas |
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| Copper chemical element with 29 atomic number, atomic mass and electronegativity values. Periodic table concept. Logo in four design. Simple black, realistic and color logo. Vector illustration |
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