The two particles of the atom located in the nucleus.
What are protons and neutrons?
These elements don't want to react with anybody.
What are the Noble Gases?
The number of periods in the Periodic Table.
What is seven?
My symbol is O and my atomic mass is 16.
What is oxygen?
All of the mass of an atom is concentrated here.
What is the nucleus?
Contains the most reactive metals.
What is the Alkali Metals?
Rows in the Periodic Table.
What are periods.
I have 16 electrons whizzing through my electron cloud.
What is sulfur?
What are electrons?
Contains two common metals, magnesium and calcium.
What is the Alkaline Earth Metals?
There are 18 of these in the Periodic Table.
What are groups or families?
With an atomic mass of 39 and 20 neutrons in my nucleus, I am a very reactive metal.
What is potassium?
The two particles that are always found in the same number.
What are protons and electrons.
Not as reactive as the metals in groups one and two, the transition metals contain the most familiar metals like gold and silver and represents these groups.
What are Groups 3 through 12 or Transition Metals?
Information that is contained within a square on the Periodic Table.
What are atomic number, element symbol, element name, and atomic mass?
I am the head of my family in the Halogens, and an important element in helping fight tooth decay.
What is flourine?
Why do scientists use models to study atoms?
Because they are very small
The smallest subatomic particle, but its cloud accounts for the volume of an atom.
What is the electron?
Elements of this family can be found on the zigzag line on the Periodic Table.
What are Metalloids?
Credited with developing the first Periodic Table of the Elements, he arranged the elements in order of increasing atomic mass.
Who is Dmitri Mendeleev?
My properties are so unique I have my own separate space on the Periodic Table. I was also the end of the Hindenburg.
What is hydrogen?