Atoms
A substance that is made up of only one kind of atom.
What is an element?
These elements are comprised of most of the periodic table and have physical characteristics such as shiny luster, malleable, magnetic, and conducts electricity.
What are metals?
The formula for density.
What is mass divided by volume (m/v)?
Tells how many protons are in the element.
What is the atomic number?
Tells how many protons an element has.
What is the atomic number?
This element has two protons.
What is Helium?
The measurement of how much mass there is in a particular space.
What is density?
The elements going horizontally (left to right) on the periodic table are called this.
What are periods?
This subatomic particle has a neutral charge.
What are neutrons?
This group number is the most stable group and is also described as the noble gases.
What is group 18?
Mass is measured in this unit.
What is grams?
Matter cannot be created nor destroyed.
What is the atomic mass?
Name for group 1 on the periodic table.
Alkali metals
What is the equation for finding the correct number of neutrons in an atom?
Atomic mass - the # of protons
Who is considered the father of the periodic table?
Dmitri Mendeleev
The subatomic particle with the least mass.
What is electron?
Known by their stair step arrangement, these elements contain both metal and nonmetal characteristics.
What are metalloids?
The universe is made up of two things ________ and ________.
matter and energy
What does AMU stand for?
atomic mass units