What Is Chemistry?
The study of matter, its properties, and how it changes
What is chemistry?
Anything that has mass and takes up space
What is matter?
A chart that organizes all known elements
What is the periodic table?
Shiny, bendable, and conduct electricity
What are metals?
Group 1 elements are called these
What are alkali metals?
Chemistry is called this because it connects biology, physics, and other sciences
What is the central science?
The smallest unit of matter that keeps an element’s properties
What is an atom?
The number of protons in an atom
What is atomic number?
Brittle and usually poor conductors
What are non-metals?
Group 18 elements that don’t react
What are noble gases?
Early chemistry focused on turning metals into gold
What is alchemy?
The center of the atom where protons and neutrons are found
What is the nucleus?
Rows on the periodic table
What are periods?
The ability to be stretched into a wire
What is ductility?
Atomic size increases when moving this direction on the table
Down a group
Known as the “Father of Modern Chemistry”
Who is Antoine Lavoisier?
Negatively charged particles that orbit the nucleus
What are electrons?
Columns on the periodic table with similar properties
What are groups?
The ability to be hammered into thin sheets
What is malleability?
This increases across a period and measures how badly an atom wants electrons
What is electronegativity?
A step-by-step process scientists use to solve problems
What is the scientific method?
This part of the atom determines how reactive an element is
What are valence electrons?
The scientist who created the periodic table and predicted elements
Who is Dmitri Mendeleev?
Why metals conduct electricity well
Because their electrons move freely
Transition metals are unique because they can do this
Form multiple ion charges