Vocabulary
The name of an element
What is the chemical name
The modern model of an atom consists of
What are a positively charged nucleus and a negatively charged electron cloud
The way the periodic table is organized
What is atomic number
A solid that forms when two substances are mixed
What is a precipitate
An exothermic reaction
What is a reaction that releases heat
the negatively charged particles that orbit the nucleus in the _____ cloud
What is an electron
The big letter(s) in the middle of an elements box on the periodic table
What is chemical symbol
Signs of a chemical reaction (you only need to name one)
What are gasses released, change in color, formation of a precipitate, and change in odor.
A reaction that takes in heat
This is the neutrally charged particle in the nucleus
What is a neutron
The top row of the separated part of the periodic table
What are the Lanthanides
Cooking is a comprised of chemical reactions
What is true
A reaction that changes the reactants into new substances.
What is a chemical reaction
The positively charged particle in the nucleus
What is a proton
A vertical column of the periodic table
What is a group
A _____ speeds up a chemical reactions
What is a catalyst
A series of chemical symbols and subscripts that describes a molecule
What is a chemical formula
What was the original model for an atom
What is a blob or sheet with no electrons protons or neutrons
Group 18 on the periodic table
What are the noble gasses
_____, _____, _____, and ____ all speed up chemical reactions
Increasing temperature, increasing concentration, increasing surface area, and adding a catalyst.