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Atoms and Ptable
Atoms and the Periodic table
| Term | Definition |
|---|---|
| Anion | An atom that has more electrons than protons |
| JJ Thomson | the first person to show evidence of electrons |
| Metals | Most of the elements on the periodic table |
| Inert | Atoms that are resistant to change or reaction |
| Argon | The element that contains 18 protons 22 neutrons and 18 electrons |
| Proton | The positively charged subatomic particle |
| Valence shell | The outer ring from an electron cloud |
| Positive | The electrical charge of a Proton |
| Electron | The smallest of the three subatomic particles |
| Chlorine | An atom with three energy rings and 7 valence electrons |
| Negative | The electrical charge of an Electron |
| Isotopes | Atoms of the same element with different numbers of neutrons |
| Valence electrons | The dots on a Lewis dot structure represent these... |
| Valence | The chemical reactivity of an element is determined by its... |
| Bohr Model | The type of model used to show the location of atoms around the nucleus |
| Family | A column on the periodic table |
| Democritus | The Greek philosopher who was first to have the idea of the atom |
| Element | The simplest pure substance containing only one type of atom |
| Rutherford | The first person to show that atoms were mostly empty space |
| Alkali metals | The most reactive elements on the periodic table |
| Electron cloud | the area of the atom that fills the greatest amount of its volume |
| Noble Gases | The chemical family with full valence shells |
| Malleable | The ability of metals to be hammered into thin sheets |
| Atoms | Small pieces that are the building blocks of all matter |
| Compound | Pure substance made of 2 or more different types of atoms chemically bonded. |
| Proton | What is the positive subatomic part of an atom? |
| Nucleus | The part of the atom that gives it its mass |
| Metalloids | Elements that have properties of metals and non-metals |
| Electron | The subatomic particle flying around the nucleus of an atom |
| Metals | Elements to the left of the zigzag line on the periodic table |
| Period | Elements who’s atoms all have the same # of energy rings |
| Molecule | At least 2 atoms chemically bonded |
| Compound | 2 or more elements chemically bonded |
| Valence | The # of electrons on the outer energy level of an atom |
| Carbon | This element is called the basis of life |
| Neutral | What type of charge does a neutron have? |
| Malleable | Metals can be hammered in to thin sheets because they are __________ |
| Ductile | Metals can be drawn in to thin wires because they are __________ |
| Family | Elements found in a column on the periodic table |
| Periodic | Something with a regular repeating pattern is also called __________ |
| Democritus | The first person to propose the idea of the atom |
| Rutherford | His experiment showed that atoms are mostly empty space |
| Thomson | His experiment gave evidence of electrons |
| Positive | A nucleus has this type of charge |
| Isotope | Atoms of the same element with different #’s of neutrons |
| Mixture | 2 or more substances mixed but not chemically bonded |
| Noblegasses | Elements in family 18 are called _________ |
| Atom | Greek word that means indivisible and indestructible |
| Alkalimetals | The family with the most highly active solids |
| Hydrogen | The only gaseous element to have just one valence electron |
Created by:
coach_fletcher
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