Element Basics
The chart that organizes all elements.
Periodic table
The center of the atom.
nucleus
Rows on the periodic table.
periods
The element we breathe to survive.
oxygen
This element helps things burn.
oxygen
The number of protons in an atom.
Atomic number.
Particles with a positive charge.
protons
Columns on the periodic table.
groups or families
The element that makes up diamonds.
carbon
This element makes balloons float.
helium
The smallest unit of an element.
An atom
Particles with no charge.
neutrons
Elements in the same group have similar _____.
properties
The lightest element on the periodic table.
hydrogen
This element is used in pencils.
carbon
Elements are made of only one type of this.
An atom
Particles with a negative charge.
electrons
Group 18 elements are called this.
noble gases
The element used in table salt
sodium or chlorine
This element is used in light bulbs and signs.
neon
The letters used to represent elements.
chemical symbol
Protons plus neutrons equals this.
atomic mass
The most reactive metals are in this group.
alkali metals
The metal used in cans and foil.
aluminum
This element is essential for bones and teeth.
calcium