Vocabulary
An arrangement of the elements in order of their atomic numbers such that elements with similar properties fall in the same column, or group.
Periodic Table of Elements
The atomic number is the same as the number of _______ in an atom of the element.
A. neutrons
B. protons
C. classifications
B
Chemical symbols are always the first two letters of an elements name.
True or False?
False
Have some properties of metals and some of nonmetals
metalloids
The periodic table of elements consists of all the elements and compounds in the world.
False
The weighted average of the masses of all naturally occurring isotopes of an element
average atomic mass
Name the atomic number for the element on the board.
30
Iron is a good conductor of energy as heat. Is iron a metal, nonmetal, or metalloid?
metal
Many are malleable and some are ductile.
metals
Elements on the periodic table can be a _______, ________, or ________ in their natural state.
solid, liquid, gas
An element that is shiny and that conducts heat and electricity.
metal
Name the number of protons in an atom of the element on the board.
30
What is true about the position of all metals in the periodic table?
A. They are in the first group.
B. They are in the bottom period.
C. They are in the rightmost column.
D.They are to the left of the metalloids.
D
Which are poor conductors of heat and electricity?
nonmetals
Where are nonmetals located on the periodic table?
A. to the right
B. to the left
C. in the middle
D. at the very bottom
A
a horizontal row of elements in the periodic table.
period
Name the average atomic mass for the element on the board.
65.38
The number of _______ in an atom determines the identity of the element
protons
Which is a semiconductor?
metalloid
What are the columns and rows of the periodic table called?
groups and periods
A vertical column of elements in the periodic table, share chemical properties
group
Name the 4 things included about an element on most periodic tables.
atomic number
average atomic mass
chemical symbol
element name
Name an element and its chemical symbol
Answers will vary
Which are dull and brittle?
nonmetal
The periodic table is arranged in a way that the ________ _________ increases.
atomic number