Matter and Chemical Change Flashcards
What is the atomic number?
The number of each element on the periodic table
What is the atomic symbol?
The short form of all the elements. O = Oxygen
How many protons are in each element?
The atomic number is the number protons
How many electrons are in each element?
The atomic number is the number electrons
What is the atomic mass?
The number at the top right-hand corner of each element in the periodic table. Can be rounded to the closest whole number when used in equations
How many neutrons are in each element?
Neutrons are equal to the atomic mass minus the atomic number
What is a family or group?
Columns on the periodic table.
What are rows or periods?
Horizontal rows on the periodic table.
Where are the alkaline metals?
Family number one
Where are the alkaline earth metals located on the periodic table?
Family number two
Where are the transition metals?
Family 3 - 12
Where are the metalloids?
Is zig-zag line located below boron silicon arsenic tellurium and astatine
Where are the halogens located on the periodic table?
Family number 17
Where are the noble gases located on the periodic table?
Family number 18
What is an anion?
And negatively charged ion
What is a cation?
A positively charged ion
What is an ion
An atom with an uneven number of electrons and protons
What is an ionic compound?
A metal plus a nonmetal or cation and ion
What do you name first and an ionic compound?
Name the metal first
What is a polyatomic ion?
I polyatomic ion or a molecular ion is a charged chemical species composed of two or more atoms covalently bonded or of a metal or a metal complex or can be considered to be acting as a single unit
What are examples of common polyatomic ions?
Nitrate sulfate phosphate carbonate and hydroxide
What are transition metals?
Numbers in the family three 212 that have more than one ion charge. Use Roman numerals
How do you know if a compound is ionic?
It has a metal
What kinds of ionic compounds are there?
Simple
Poly atomic
Multiple charges
