2 pt 3 pt 4 pt 5pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2pt 3 pt 4pt 5 pt 1pt 2pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4pt 5 pt 1pt Periodic Table Periodic Table Metals Matter Atoms Groups
An element with properties of both metals & nonmetals.
metalloid
“He” stands for Helium. What is “He” called?
A chemical symbol
How are the elements arranged on the periodic table? By what number?
Atomic number
The elements in a column are part of a _______?
Group
How are the new elements that are added to periodic table made?
In a lab; with a particle accelerator
What is luster?
The shininess of a metal
Where are the metals located on the periodic table?
To the left of the stairstep
Do metals conduct heat and electricity ?
Yes
What property allows metals to be drawn out into wires?
ductility
What property allows metals to be hammered into thin sheets?
Malleability
The smallest unit of matter is______.
An atom
Atoms join together chemically in a process called ____.
Bonding
Two or more identical atoms bonded together make up an _______.
element
Daily Double
What subatomic particle is involved in the bonding of atoms?
electrons
Two or more atoms of different elements bonded together are a ________.
Compound
What is the center of an atom called?
Nucleus
What is the positive subatomic particle called?
A proton
What is the negative subatomic particle called?
electron
Which number on the periodic table will tell you the number of protons in an atom of an element?
atomic number
What are atoms of the same element with differing numbers of neutrons?
Isotopes
Groups are the ______ components of the periodic table.
Vertical; columns
This group doesn’t react with other elements at all.
Noble Gases; Group 18
This group contains the MOST reactive of all the elements on the table.
Alkali Metals, Group 1
This group has diatomic elements of all normal phases.
Halogen; Group 17
What do elements of the same group have in common?
Similar chemical & physical properties