Combustion, Heat, & energy
What is combustion?
its chemical energy which causes two or more substances to make a new substance.
Is the nucleus of a atomic positively or negatively charged.
Positively charged
Whats the first element on the periodic table
Hydrogen
What is a chemical bond?
A lasting attraction between atoms or ions.
What do ionic compounds end in?
ide?
Where is heat released in a exothermic reaction?
to the surroundings
What is an atom?
The smallest particle of an element.
How many elements are there on the periodic table
118
What does it enable?
The formation of molecules.
H2CO3
What is the law of conservation of energy?
energy is neither created or destroyed.
How do you find the # of neutrons?
Atomic # - mass # = # of neutrons
What are the rules for electron affinity?
Increases from left to right from groups 15 - 17 and bottom to top.
Whats its bonding number
How do you write the ionic formula for Aluminum chlorine?
Al1CL3
What is Conduction?
movement of electrons (fill in the blank)
To move from one energy level to another, an electron must _____ or ______ just the right amount of ____.
To move from one energy level to another, an electron must gain or lose just the right amount of energy.
What is atomic radii used for?
To measure size of atom.
How dose a polar bond share electrons and what is its electro negativity ("strength").
- Shares unevenly
- 0.4 - 2.0
When do you have to look for transition metals?
If the element is Ionic
How is heat transferred through the inner and outer core.
Conduction
Define atomic emission spectra.
It is the pattern formed when light emitted by an element is separated into the different wave lengths it contains.
What is the only non metal on the opposite side of the periodic table?
Hydrogen
What section on the periodic table does not become Ions.
noble gas
What is the name for N2O4?
dinitrogen tetroxide