Atoms
What is the smallest unit of matter that retains the properties of an element?
Atoms
What is an atom?
What is formed when two or more atoms bond together?
Molecule
Answer: What is a molecule?
What is a pure substance made of only one type of atom?
Answer: What is an element?
Where are electrons located in an atom?
The electron cloud
What is the process by which plants make their food using sunlight?
Photosynthesis
What subatomic particle has a positive charge?
Proton
What is a proton?
What is the molecule that is made of two hydrogen atoms and one oxygen atom?
Water or H20
Answer: What is water (H₂O)?
What is the periodic table?
a chart that organizes all known elements?
What do you call the outermost electrons that are involved in bonding?
valence electrons
What is the center of the Earth called?
The core
What is the center of an atom called?
Nucleus
What is the nucleus?
What is the difference between an atom and a molecule?
An atom is a single unit, while a molecule is made up of two or more atoms bonded together.
What element has the symbol 'O'?
Answer: What is oxygen?
What is the average energy level of electrons in an atom called?
Energy shells
What do we call the change of water from a liquid to a gas?
Evaporation
What is the name for the particles that have no charge in an atom?
Neutros
What are neutrons?
What type of bond holds the atoms in a molecule together?
Answer: What is a chemical bond?
How many elements are there on the periodic table?
118
What is the main difference between the electron cloud and the nucleus?
The nucleus contains protons and neutrons, while the electron cloud contains electrons.
What is the only mammal that can fly?
A Bat
How many protons does a carbon atom have?
6
Answer: What is 6?
What is the term for molecules that have the same number of atoms but different structures?
What are isomers?
What do you call elements that are mostly gases at room temperature?
What are nonmetals
What term describes the region around the nucleus where electrons are likely to be found?
The electron cloud
What are the five senses?
Sight, hearing, taste, touch, and smell?