chapter 6:7 Flashcards
(16 cards)
ionic bonds
Are formed when one atom gives up electrons to another atom
Metallic bonds
Metals and atoms share electrons freely
combustion
A substance that reacts with oxygen to produce heat and light
Valence electrons
Electrons in the outermost shell
What is a atomic number?
Same as a proton
Atoms
are a basic unit of matter
Protons
Positively charged found in the nucleus
neutrons
Neutral no charge found in the nucleus
electrons
Negatively charged found in the shells
Elements
Pure substances, e.g., carbon, oxygen
Periodic table
I tried to organize his element based on their atomic data
Metals
Good conductors, e.g. iron, copper
nonmetals
Poor conductors, EG oxygen, sulphur
metalloids
Have properties of both metals and nonmetals
seven day atomic elements
hydrogen, nitrogen, oxygen chlorine, bromine fluorine iodine
describe diatomic
A molecule that consists of two atoms