Atoms
A positively charged subatomic particle
What is a proton?
A substance that is shiny, malleable and good conductor of electricity
What is a metal?
A pure substance made of only one kind of atom
What is an element?
Electrons on the outermost shell
What are valence electrons?
This is how many hydrogens in H20
What is 2?
The smallest unit of an element that still retains some of its chemical properties.
What is an atom?
These are semiconductors
What are metalloids?
These are two different elements chemically bonded together, not physically mixed
What is a compound?
What is the atomic radius?
These are elements with full valence shells
What are noble gases?
This is an atom with 7 protons
What is nitrogen?
These are brittle and poor conductors of electricity
What is Non metals?
Water is not an element, it is this
What is a compound?
This is the energy it takes to remove an electron
What is ionization energy?
This is how electronegativity changes down a group (column)
What is decreases?
These are the lightest of the subatomic particles
What is an electron?
The majority of these are gases
What are nonmetals?
Saltwater is not a compound, but this
What is a mixture?
What is beryllium?
This is a measure of how much an atom will attract valence electrons from another atom in a bond
What is electronegativity?
Where most of the mass of an atom is located
What is the nucleus?
These are all solid except for mercury
What are metals?
Both H2O and O2 are these, two or more atoms chemically bonded together.
What are molecules?
Between lithium and fluorine, this one has LOWER electronegativity
What is lithium?
This is an atom with 1 proton, one valence electron and generally no neutrons
What is hydrogen?