Matter/Mixtures
What are the 3 forms of matter?
Solid, liquid, gas
What are the elements that act similar to both metals and gases?
Metalloids
What is the charge of a proton?
Positive
What are ions with a positive charge called?
Cations
What are valence electrons?
What is mass?
The amount of matter in an object
What is the majority of the period table (columns 3-12)
Transition metals
What has equal mass to protons?
Neutrons
What charge would a FlourIDE ion have?
Negative
Why are noble gases typically unreactive?
Their highest occupied energy level is full.
What is a mixture?
A physical blend of two or more componants
What is the title of the last column with the least amount of reactivity?
The Noble gases
What is the central core of an atom?
The Nucleus
What are monatomic ions?
Ions that consist of a single atom
Why do elements within a group act similarly?
They have the same amount of valence electrons.
What property depends on the type of matter involved?
Intensive property
What is the name of the reactive first column on the periodic table?
Alkali Metals
What is an atom?
The smallest particle of an element that retains its identity
Do you write the anion or the cation first in a binary ionic compound formula?
Cation first, anion second
What is the Octet rule?
The rule states that atoms tend to achieve the electron configuration of a noble gas. (8 Valence electrons)
What is a homogenous mixture?
Mixture in which the composition is uniform
Who made the framework for the modern periodic table?
Dmitri Mendeleev
What defines an element's atomic number?
The number of protons
What is special about writing a transition metal in a binary ionic compound?
Transition metals can have varying charges, so you have to write a roman numeral to indicate the charge
Do nonmetals tend to gain or lose valence electrons?
They tend to gain valence electrons