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BJHS AtomicStructure
BJHS Atomic Structure
| Question | Answer |
|---|---|
| What is the name for the rows that go across on the periodic table? | periods |
| What is the negatively charged particle of an atom? | electron |
| This is found in the nucleus of an atom and has a positive charge. | proton |
| The electrons found in the outermost energy level of an atom are called __________ _________. | valence electron |
| This uses the atomic symbol and dots to show the valence electrons. | Lewis dot diagram |
| Although very small in size compared to the whole atom, the part of the atom that contains most of the mass is called what? | nucleus |
| The volume of an atom is mostly this. | empty space (electron cloud) |
| The atomic mass is based on the number of these two parts of the atom. | protons and the neutrons |
| The unit of measure the atomic mass is measured in. | AMU or atomic mass unit |
| The “orbits” the electrons have around the nucleus are called this. | energy levels, shells, or electron clouds |
| He is credited for the idea of the periodic table. | Mendeleev |
| In the current periodic table, elements are arranged according to this. | atomic number |
| The atomic number of an element also tells us the number of these. | protons |
| Another name for a group on the periodic table is this. | family |
| These are found to the left of the zig zag line on the periodic table | metals |
| The smallest piece of an ELEMENT. | atom |
| These metals are found in group one on the periodic table and are the most reactive. | alkali metals |
| Neon is a member of this family of gases. | Noble gases |
| Number of valence electrons found in alkaline earth metals. | 2 |
| The lanthanides and actinides found on the bottom two rows of the table are also known as this. | rare earth metals |
| Properties of these include malleability, shiny, magnetic. | metals |
| These physical properties include dullness, brittle, and these are often found as gases. | non-metals |
| An example of this ‘mixture of metals’ is bronze, which is created by combining copper and tin. | alloy |
| The electrons that are shared or given up and involved in bonding are these. | valence electrons |
| The greatest number of valence electrons an atom can have. | eight |
| Because these have characteristics of both metals and non-metals, these make good semi-conductors. | metalloids |
Created by:
Ms. Traynor-Grimes (Ms.TG)
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