Atoms
This tiny particle has a positive charge and is found in the nucleus of an atom
What is a proton?
Made up of only one kind of atom
What is an element?
Anything that has mass and takes up space
What is matter?
This element's symbol is He
What is Helium?
Name all three common states of matter.
What are solid, liquid, and gas?
This is an uncharged particle in the nucleus of the atom.
What is a neutron?
These are on the periodic table
What is an element
This state of matter has no definite shape or volume and spreads out to fill any container.
What is a gas?
This is the number of protons in the nucleus of each atom of an element
What is the atomic number?
This change happens when a solid turns into a liquid.
What is melting?
This is a negatively charged subatomic particle
What is an electron?
This chart contains 118 different elements, each with its own symbol, atomic number, and properties.
What is the periodic table?
Everything around you is made of these tiny particles, and they are made of protons, neutrons, and electrons.
What is an atom?
This is the sum of the an atom's protons and neutrons
What is the atomic Mass? (or Mass number)
The atomic number tells you the number of these particles.
What are protons?
This number tells you how many protons are in an atom of an element
What is the atomic number?
This element, found in diamonds and living things, has the symbol "C"
What is carbon?
This type of change does not create a new substance—it's like when water turns to ice.
What is a physical change?
This is the weighted average of mass of an element
What is atomic mass
Oxygen has this atomic number.
What is 8?
This is the total number of protons and neutrons in the nucleus of an atom.
What is the atomic mass (or mass number)?
This gas is the most common element in the universe and has only one proton.
What is hydrogen?
This type of matter has particles packed tightly together, giving it a fixed shape and volume.
What is a solid?
These are the letters used to represent an element.
What is the atomic symbol?
This shiny, yellow metal is used in jewelry and has the symbol "Au"
What is gold?