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Atomic Structure
Atoms and Elements Review
| Question | Answer |
|---|---|
| The charge of a proton is.. | positive |
| The charge of an electron is... | negative |
| An element has 3 protons, 4 neutrons and 3 electrons, what is the mass? | 7 |
| This atom has 2 electrons on the first level, 3 electrons on the second level. What element is it? | boron |
| Which scientist described electrons existing in the atom in specific energy levels (orbitals) ? | Bohr |
| In the periodic table, elements with similar chemical properties are found in? | vertical columns |
| Rows in the periodic table are also referred to as? | periods |
| The element with atomic number 11 is most likely to have similar chemical properties to the element with atomic number | 19 |
| How many groups of elements are there in the modern periodic table? | 18 |
| Which of the following groups of elements contains only metalliods? A. Ge, As,Sb,Te B. Li,Na,K,Rb C. Ge,As,Sb,Bi D. Ge,Pb,Au,Ag | A |
| Which of the following elements would you expect to react in a manner most similar to nitrogen A. phosphorus B. sodium C. neon D. oxygen | oxygen |
| The group of the elements that sometimes behave like metals and sometimes non-metals | metalloids |
| All atoms of gold have _____ electrons | 79 |
| Symbol for fluorine | F |
| The mass number subtract the atomic number is the number of ? | neutrons |
| Symbol for Potassium | K |
| The maximum number of electrons in the 3rd orbital? | 8 |
| Element #______ is named after the person who made the periodic table we use | 101 |
| The cathode ray tube helped discover? | electrons |
| The two liquid elements are ? | mercury/bromine |
| Which two subatomic particles are the largest? | protons and neutrons |
| The most reactive halogen is? | fluorine |
| The least reactive alkali metal is? | lithium |
| The smallest subatomic particle? | electron |
| How many natural types of elements are there? | 92 |
| The four most abundant elements in the human body are? | oxygen, carbon, hydrogen, nitrogen |
| The atomic model has been modified many times over the years. This happened because? | new evidence became available |
| Moving down the column in the periodic table, the number of valence electrons in the outer orbital? | increase |
| Under ordinary room temperature conditions, the greatest number of elements are? | metallic solids |
| The noble gases are very unreactive because? | outer orbitals are full |
| In which group of the periodic table are the alkali metals found? | 1 |
| An atom of an element belonging to the halogen family has? | two outer shell electrons |
Created by:
sdpemberton31
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