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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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