Periodic Table
How are elements arranged in the periodic table from left to right?
By increasing atomic number
What element is a noble gas neon,sodium,calcium,or chlorine?
Neon
What determines an element's chemical properties in the periodic table?
Electron configuration
How many elements are in period 2
8
What group contains the most reactive metals?
Group 1
What is the atomic number of an element?
The number of protons in the nucleus
What is a metalloid?
An element that has properties of both metals and non metals
Which elements are most likely to form ionic bonds?
A metal and non metal
What are elements in the same period likely to have in common?
The same number of electron shells
Where are transition metals located.
Group 3-12
Which group contains elements called halogens?
Group 17
What are the elements at the bottom of the periodic table called?
Actinides and lanthanides
What happened to atomic radius as you down a group?
Increases
What is the atomic number of an element?
The total number of protons in the nucleus.
What is the most abundant element in the universe?
Hydrogen