Atomic Basics
What does atomic number represent?
Number of Protons
What are vertical columns called?
Groups or families
What element in NaOH makes it a base?
Sodium
Are metals shiny or dull?
Shiny
What determines an element’s identity?
Number of protons
What are horizontal rows called?
Periods
What element forms long chains in oils?
Carbon
Are nonmetals good conductors?
No
What is the lightest element?
Hydrogen
Which group is the most reactive metals?
Alkali metals
Why is sodium important in soap?
It bonds with fatty acids to form soap
Where are metalloids located?
Stair-step line
What is the atomic number of carbon?
6
Which group contains elements that barely react?
Noble gases
What type of elements are most on the left side?
Metals
Are halogens metals or nonmetals?
Nonmetals