Chemistry Deffinition 9 Flashcards
Molecules definition
Two or more atoms connected by chemical bonds
Covalent compound definition
Non-metal bonded to a non-metal
Matters definition
Anything that has mass or volume
Compound definition
Two or more different atoms combined.
Element definition
A substance that can’t be broken down by non nuclear reactions
Suspension definition
A heterogeneous mixture of a finely distributed solidin a liquid
Solution definition
A homogeneous mixture of one or more solutes dissolved in a solvent
Pure substance definition
A substance that has a fixed chemical composition throughout
Heterogeneous definition
A mixture in which the composition is not uniform throughout the mixture
Homogeneous definition
A mixture with uniform
Mixture definition
Made when two or more substances are combined.
Ionic compound definition
Metal bonded to a non metal
Deltons atomic theory 1
All matter is made of atoms to small to see
Daltons atomic theory 2 1808
Each element has its owns atoms, atoms of the same element have the same mass
Daltons atomic theory 3 1808
Compounds are created when atoms of different elements link to form compound atoms
Daltons atomic theory 4
Atoms cannot be created or destroyed
5 families and property’s of each
Alkalis
Alkaline
Halogen
Noble gases
Hydrogen
What are families
Families are verticals columns on the periodic table
What are periods
Horizontal rows on the periodic table
What is the max number of electrons
2,8,8,1818,32,32
What is a trend on the periodic table
It’s a pattern on the periodic table
What are examples of element
Metals, metaloid, non metal
Who is Thomson
He discovers electron and made the plum putting model
Who is Rutherford
He found out that most of the atom is empty and discovers about the nucleus
