unit 1
Are two atoms of the same element identical?
Not identical
What is the configuration for noble gas?
Elemental symbol of the last noble gas to that atom, the configuration of the remaining electrons
How do find valence electrons?
The number of valence electrons is equal to the atoms main group number
What are polar and no polar covalent bonds?
What are poly atomic ions?
Nitrate ion NO3 is an example
What type of energy is a stored energy that is ready to move?
Potential energy
Where is the nucleates located in the cell and whats the importance?
Located in the middle of cell, important because it controls cell data and control center
How many group familys are on the periodic table?
18 familys
When are non bonding electrons found?
Found when not participating in bonding with other atoms
When do you use the per theses when naming transition metals?
what type of energy is a moving object?
Kinetic energy
What kind of charge does the nutran have?
Neutral electric charge
What is the Lewis dots for the elements?
Valence electrons
When does the breaking of bond release energy?
During bond formation
How many prefixes can be used in covalent naming?
All ten prefixes can be used
What the difference between exothermic and endothermic?
Exothermic is realest by light an endothermic is a chemical reaction that absorbs heat
How can you find the atomic mass of a element?
Mass number = protons + neutrons
Hows many metal elements are there?
91 elements
When are electrons transferred evenly or unevenly?
A covalent bond that has an equal sharing of electrons is called a non polar covalent bond
What is the formula for chloride nitrate?
ClNO3
How many layers does earth have?
4 layers
How many elements are in periodic table?
118 elements
What are s,p,d,f blocks?
Derived from the spectroscopic notation for the value of an electrons azimuthal quantum number
Whats the defination of conductivity?
The rate at which heat passes through a specified
What is the chemical formula of calcium chloride?
CaCl2