Vocabulary
What is a chemical symbol?
A one- or two-letter abbreviation for each element in the periodic table.
These are group #1 on the periodic table and are very reactive.
Alkali Metals
What element has similar characteristics to Chromium: Iron or Tungsten?
Tungsten.
What two elements make water?
Hydrogen and Oxygen.
How many protons does hydrogen have?
One.
What is the periodic table?
A chart showing all of the elements arranged according to the repeating pattern of their properties.
What characteristics does a metalloid have?
A metalloid shares both metal and nonmetal characteristics.
Which element has a atomic symbol of U?
Uranium
True or False:
All noble gases at room temperature are in gas form.
False
True or false: an element that has the same amount of protons as another element of its type, but a different number of neutrons is still the same element.
True.
What is a period on the periodic table?
A horizontal row on the periodic table.
True or False:
Alkaline Metals are the most reactive main group of elements.
False: Halogen are the most reactive.
Which alkaline metal is commonly found in milk?
Calcium
What is the most simple element?
Hydrogen
Who invented the periodic table?
Dmitri Mendeleev.
What is a group on the periodic table?
A vertical row on the periodic table.
How many of the noble gases are solid at room temperature?
One.
What metals are rarely found in nature but mostly found in labs?
Transition metals
What is one method of extracting metals from nonmetals to separate them?
Using a magnet.
What is the difference between a modern periodic table and older versions?
Modern periodic tables are organized by increasing atomic number rather than atomic mass.
What is atomic mass?
The average mass of all the isotopes of an element.
What was the last group of elements discovered?
Noble gases.
What alkali metal has the atomic symbol of K?
Potassium
How many elements in group one are nonmetals and what are they if there are any?
One; hydrogen.
What element name is featured in a Nirvana song?
Lithium