What scientist said atoms are the tiniest particle of mater ?
Who is Democritus?
What is the smallest part of matter?
What is an atom?
Where do you find most of a atoms mass?
What are neutrons and protons?
How many elements are on the modern Periodic Table?
What is 118?
What are the physical properties of metals?
What are shinny and good conductors?
Who said atoms con not be created or destroyed?
Who was Dalton?
What charge is a proton?
What is positive?
What does the atomic number tell us in the Periodic Table?
What are protons?
First scientist who developed the Periodic Table?
Who was Mendeleev?
What is Ductility of a metal?
What is the ability to pull into wire?
Who discovered electrons?
Who was Thompson?
What is the negative charge of a atom?
What is a electron?
What does a balance atom tell us abut the atoms charge?
What are equal protons and neutrons?
How did Mendeleev arrange this Periodic Table?
What is Atomic Mass?
What are the elements in group 2 called?
What are alkaline earth metals?
Who studied protons?
Who was Rutherford ?
What makes up the Nucleus?
What are protons and neutrons?
What are the same elements with different neutrons called?
What are isotopes?
What is a vertical group of elements called?
What are group?
What do we call metals in group 18 on the Periodic Table?
What are Noble Gases?
What was Bohr credited with?
What is electrons orbit and energy levels?
What is the space around a nucleus called?
What is electron cloud?
What do we call a neutral ion that loses a electron?
What is a positive ion?
What fraction of elements on the Periodic Table are made of metals?
What are three quarters?
What are element that has physical and chemical properties of both metals and nonmetals?
What are metalloids?