ELEMENTS
WHAT IS A PURE SUBSTANCE THAT CANNOT BE BROKEN DOWN INTO SIMPLER SUBSTANCES?
What is an element?
What are the tiny particles that make up elements?
What are atoms?
What do we call the starting materials in a chemical reaction?
What are reactants?
What is anything that has mass and takes up space?
What is matter?
What organizes all the known elements based on their properties?
What is the periodic table?
How many known elements are there?
WHAT IS OVER 100?
What particles in an atom have a positive charge?
What are protons?
What is formed when hydrogen and oxygen react?
What is water (H₂O)?
What are the three common states of matter?
What are solid, liquid, and gas?
What are the rows in the periodic table called?
What are periods?
WHAT ELEMENT HAS THE ATOMIC NUMBER 8?
WHAT IS OXYGEN?
What is the center of an atom called?
What is the nucleus?
What do we call a combination of two or more atoms?
What is a molecule?
What state of matter has a definite shape and volume?
What is a solid?
What are the columns in the periodic table called?
What are groups?
WHO CREATED THE PERIODIC TABLE IN 1869?
WHO IS DMITRI MENDELEEV?
What are negatively charged particles that move around the nucleus?
What are electrons?
What happens to bonds between atoms during a chemical reaction?
They are broken or formed
What state of matter has a definite volume but takes the shape of its container?
What is a liquid?
What element has the atomic number 6?
What is carbon?
What is the most abundant element in the universe, primarily found in stars?
What is hydrogen?
What is the term for atoms of the same element that have different numbers of neutrons?
What are isotopes?
What is the process called when substances combine to form new substances?
What is a chemical reaction?
What is the state of matter where particles are so energetic that they break free from each other, often found in stars?
What is plasma?
What is the significance of an element's atomic number?
what is it tells us the number of protons in an atom of that element?