'Atomic mass amu' presentation slideshows

Chemistry

317 views • 25 slides

Atomic Structure

Atomic Structure. ELEMENTS. 115+ known elements 90 naturally occurring elements 14 most common elements: hydrogen ( H ) carbon ( C ) nitrogen ( N ) oxygen ( O ) sodium (Na) magnesium (Mg) aluminum (Al) silicon (Si) phosphorous ( P ) sulfur ( S ) chlorine (Cl) potassium (K)

364 views • 23 slides

Periodic table

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element 44 = atomic # 44 44 protons 44 electrons

66. How many protons and electrons are contained in an atom of element 44?. element 44 = atomic # 44 44 protons 44 electrons. 67. A carbon atom has a mass number of 12 and an atomic number of 6. How many neutrons does it have?. mass number (p + n) 12 atomic number (p) - 6

807 views • 11 slides

Modern Atom

Modern Atom. Basic Structure. Consists of tiny nucleus and the electrons that move about it Nucleus diameter about 10 -13 cm Electron is average distance of 10 -8 cm from the nucleus. Nucleus. Chemistry is mostly about the electrons

354 views • 10 slides