Combustion,Heat, and Energy
Define Radiation
the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization.
Define a neutron
Neutrally Charged atom
What block is Lithium, Hydrogen, and Sodium in (like the letter)
S block
Contrast cation vs anion
Cation= positively charged ion
Anion= Negatively charged ion
Lithium Sulfide is a combination of which elements
Lithium and Sulfur
Endothermic is the gain of heat.
Exothermic is the loss of heat
What is an isotope
Each of two or more forms of the same element that contain numbers of protons.
How many valence electrons does Sulfur have
7 valence electrons
What is a covalent compound a combination of
two nonmetals
You write the negative after completing the criss cross method? T or F?
F
What is the Law of Conservation of Energy?
Matter cannot be created nor destroyed
Water is cold you then heat it to boil it is in the excited state True or False?
True
How many dots are on the lewis dot structure for Boron
5
Define solubility
the ability to dissolve in water
What chemical name for Sodium and Nitrogen
Sodium Nitride
What is different between an Open vs Closed System
Open system a system that has external reactions
Closed system has no external reactions nothing can escape
Atomic Number vs Mass Number
Atomic Number= The whole number on every element
Mass Number= The sum of protons and neutrons
Define Atomic Radii
The total distance from an atom's nucleus to the outermost orbital electron.
Boron has an electronegativity level of 2 is it polar or non polar
Polar
Nitrogen tribromide
Water flowing from a waterfall. Potential or Kinetic Energy.
Kinetic
Electron configuration vs Noble Gas configuration (give an example for each)
Noble gas configuration= You list the noble gas address then the element address
2s2 2p3
Contrast metal vs metalloid
Forms positive ions and has metallic bonds
Contains properties that aren't exactly metal or nonmetal.
How many bonds does Iodine and Sodium form
1
Define polyatomic ion
Ion that contains more than one atom.