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Electron Clouds Major energy level Maximum number of electronsK 2 electrons L 8 electrons M 18 electrons N 32 electrons O 32 electrons P 18 electrons Q 2 electrons
Atomic Number Atomic Number Number of Protons in the NucleusAtomic Mass Average weight of an element’s atom
Carbon Dioxide Molecule
Sodium Chloride molecule
Sodium Chloride in Water
Isotopes Atoms of the same element that have different numbers of neutrons in the nucleus
Isotopes of Carbon Carbon 12 6 protons, 6 neutrons, 6 electronsCarbon protons, 8 neutrons, 6 electrons Radioactive
Chemistry of Life (2.1) Part 1
Atoms, Elements, Compounds, and Ions Atom basic building block of all matter Element Substance that consists of only one type of atom. Molecule has two.
4.3: HOW ATOMS DIFFER ATOMIC NUMBER
Atomic Number, Mass Number, Atomic Mass and Isotopes Mrs. Coyle Chemistry.
An atom –smallest basic unit of matter
Atomic Structure Nucleus – contains protons and neutrons
The Periodic Table & Electron Energy Levels
Atomic Mass & Number Isotopes The Periodic Table.
The Atom & the Periodic Table. Reading the Periodic Table.
Half Lifes. Atoms Proton Electron Cloud Neutron Atomic Number Number of protons – change this → change the element Hydrogen has one proton and one electron.
Atomic Structure and the Periodic Table
Reading the Periodic Table. The top number is the atomic number or the number of ______________________ Cl is an abbreviation for ______________________.
Chapter B-1 Lesson 1 What are elements?. Matter Matter is anything that takes up space and has mass. (weight on Earth)
Tech Notes: Why Atoms Combine Molecule and Compound: Two or more atoms chemically combined Have completely different properties than those of the.
Do and Answer Draw a Bohr Model for Oxygen Hydrogen (twice) Using the drawing try to draw a Water Molecule. Define: atom, compound, molecule.
Chapter 2~The Chemistry of Life
Standard Atomic Notation
2.1 Atoms, Ions, and Molecules KEY CONCEPT All living things are based on atoms and their interactions.
The Atom The smallest particle into which an element can be divided and still retain all of the properties of that element.
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