The Basics Click this link to learn about how the periodic is organized. Copy and answer the question below after watching the video. Name 3 ways in which elements are name. to your login to access the video.

Key Vocabulary Protons are __________________ charged particles and are located in the _______________ of an atom. Neutrons are _________________ charged particles and are located in the _______________ of an atom. Electrons are ______________ charged particles and are located in _______________________ of an atom Demitri Mendeleev was a Russian ________________who is credited for creating the ____________ table. Periodicity refers to the tendency of showing _____________ _____________ patterns. Atomic Number identify the atom and tells how many _____________ the atom has in the ____________. A Ion is an atom that had different numbers of ________________ and _________________. Anions are atoms that have more ____________________ than ____________________. Cations are atoms that have fewer ________________________ than __________________. Isotope is an atom in which the number of _______________________ and ________________ differ. Complete each of the vocabulary terms as you go through the lesson positively nucleus negatively nucleus neutrally The orbitals or “Shells” scientistperiodic regular repeated

1. Where does the earliest known concept of atoms come from? 2. Name the three particles that atoms consist of and explain how they are different. 3. Describe the difference between an anion ion and a cation ion 4. How are elements identified? 5. What does the atomic number tell you about an element? Provide a complete answer each as you go through the assignment. 6. A hydrogen atom has an atomic number of one. What does this mean? Analysis From Greek philosopher Democritus from 460 BCE Protons in the nucleus have a positive charge, Neurons in the nucleus which are neutral, and electrons outside the center which are negatively charged. A cation ion will have fewer electrons than it does protons. Elements are identified by the number of protons within them. The atomic number describes how many protons are with the atom of the element and therefore identifies it. The atomic number of one states the hydrogen atom has only single proton within the nucleus.

The answer starts with something called the Periodic Table Before going onto the next slide, click this link and watch the video. Pay particular attention to the topics of Protons, Atomic Numbers, Atomic Mass and Isotopes.Before going onto the next slide, click this link and watch the video. Pay particular attention to the topics of Protons, Atomic Numbers, Atomic Mass and Isotopes. Make notes about each in your science notebook.

Sulfur is example of a Cation ion Magnesium is an example of a Normal Phosphorus is an example of a Anion ion In your science notebook, copy and label each of the examples to the right

Hydrogen Helium

Click the link below and practice identify the atom. Continue until you get each correct and have an understanding how atoms are named. After you have completed the activity, be all your vocabulary completed and questions are answered.