| Question |
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| Answer |
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| The British Scientist who discovered the atomic numbers of elements |
Henry Moseley |
| The number at the top of each square of the periodic table is the _____. |
Atomic Number |
| The horizontal rows of elements in the periodic table are called _______. |
Periods |
| The elements to the left of the zigzag line on the periodic table are ______. |
Metals |
| Elements within the same vertical column have _____ _______. |
Similar Properties |
| The elements in a period have properties that are (alike/not alike) |
Not Alike |
| Elements that do not combine with other elements except under special, controlled conditions are called _____. |
Inert |
| The elements in family 18, which are inert, are known as the _______. |
Noble Gases |
| The elements that are active, strongly nonmetallic, and react readily with metals to form salts are called _____ |
Halogens |
| The elements that are highly reactive, and never found free in nature; always found combined in a compound |
Alkali Metals |
| The two rows that stand alone at the bottom of the periodic table are called the _______ |
Rare-Earth Metals |
| Developed a periodic table arranged according to atomic mass |
Dmitri Mendeleev |
| The 1st row of the two that are separated from the table and laid out below is called the _____ |
Lanthanide Series |
| The row that contains almost all of the radioactive elements on the periodic table is the _______ |
Actinide Series |
| A regular and repeating pattern can be described as ________ |
Periodic |
| The atomic number, chemical symbol, _______, and atomic mass are found in each element key |
Chemical Name |
| Metals that can be drawn into thin wires are described as _______ |
Ductile |
| Metals that can be hammered into thin sheets are described as __________ |
Malleable |
| _________ is the most abundant element in the earth's atmosphere |
Nitrogen |
| The ________ electrons are those found in the outermost energy level of an atom |
Valence |
| Elements can be classified as metals, nonmetals, and ______ |
Metalloids |
| ________ include elements such as Fluorine and Bromine |
Halogens |
| Property of metals describing their "shininess" |
Luster |
| Nonmetals are (good/poor) conductors of electricity |
Poor |
| States that physical and chemical properties of the elements are functions of their atomic numbers |
The Periodic Law |
| Which family contains the most active nonmetals? |
Halogens |
| Which family contains the second most active metals? |
Alkaline Earth Metals |
| Which family loses electrons most easily? |
Alkali Metals |
| Which family contains elements that are highly unreactive? |
Noble Gases |
| Which family contains elements with one to two valence electrons? |
Transition Metals |
| Pattern of valence electrons from left to right of a period (Increases/Decreases) |
Increases |
| Amount of energy needed to remove an electron from an atom (increases/decreases) across a period? |
Increases |
| Nonmetals are dull and have ______ melting points |
Low |
| Atomic size (increases/decreases) across a period |
Increases |
| Metallic properties (increase/decrease) across a period |
Decrease |
| Process in which atoms join together to form molecules |
Chemical Reaction |
| Groups or Families are terms used to describe the _____ of the periodic table |
Columns |
| A row is also called a ______ |
Period |
| Sodium is found in family |
One |
| Fluorine is found in family |
Seventeen |
| Calcium is found in family |
Two |
| Radon is found in family |
Eighteen |
| Gradual wearing away of a metal due to a chemical reaction b/t the metal and it's surroundings |
Corrosion |
| Atoms strive to achieve thei ____. Having their outermost energy level full to capacity. |
Octet |
| Elements having both metal and nonmetal characteristics |
Metalloids |
| Boron, Silicon, Germanium, ______, Antimony, Tellurium, and Polonium are all metalloids |
Arsenic |
| Family who's elements form over 5 million different compounds |
Carbon Family |
| Second most abundant element in the earth's crust |
Silicon |
| Element which is is the "basis of life" |
Carbon |
| Branch of science that studies carbon compounds |
Organic Chemistry |
| Most abundant element in earth's crust |
Oxygen |
| Screens out harmful UV radiation, protecting life on earth |
Ozone |
| Compounds made with elements from this family are most often used to color paint |
Transition Metals |
Biology Lab Midterm
