Ions Flashcards
What is an ion
An atom that loses or gain an electron in order to become a positive or negative charge
Why are ions positive or negative
Depending on how many protons or electrons there are
Why do Ions have charges
Because they have an imbalance of protons and electrons
Draw an ion particle of Al
What is an ionic bond
A metal and a non metal
What is it called when a metal reacts with a non metals electrons
An ionic compund
Draw an atom diagram of lithium
P=3
E=3
N=7-3=4
What is a covalent bond
A non metal and a non metal
Draw the covalent bond of CO2
Draw a stick diagram of CH4
What is the equation on relative atomic mass
RAM=(mass1xabundance1)+(mass2xabundance2)divided by 100
What is an isotope
2 or more elements that contain equal amounts of protons and neutrons and a different number of electrons
What are the two main types of isotopes
Stable and unstable
What is the melting and boiling point of simple covalent structures
Usually low
What is an intermolecular force
Weak forces between molecules
What is solubility
The ability of a substance to form a solution with another substance
What is a polymer
A substance made from macro molecules
What is a monomer
The small starting molecules in a polymerisation
Draw the polymer structure of CH4
Draw the structure of a metallic bond
Why are alloys harder that pure metals
Different size atoms make it more difficult for the layers to slide over eachother
What are the size of nanoparticles
Between 1 and 1000 nm
