Show:
Atoms and Matter
Isotopes and Radiation
Electrons!
The Periodic Table
Periodic Trends
100
The state of matter that is ionized gas
What is plasma
100
The average weight of all naturally occurring isotopes of an element
What is relative atomic mass
100
A charged atom
What is an ion
100
The family that chlorine belongs to
What is the halogens
100
The ability of an atom to attract electrons
What is electronegativity
200
A positively charged particle found in the nucleus
What is a proton
200
The amount of time it takes for half of the mass of a radioactive element to decay
What is half-life
200
The charge of a fluorine atom that has gained an electron
What is -1
200
The scientist who developed the periodic table
Who is Mendeleev
200
The atom with the largest radius
What is francium
300
The scientist responsible for developing the plum pudding model
Who is Thomson
300
The type of radiation that consists of a helium nucleus (2 protons and 2 neutrons)
What is alpha radiation
300
The number of electrons that oxygen needs to have a full outer shell
What is 2
300
The family that calcium belongs to
What is alkali earth
300
The atom with the highest electronegativity
What is Fluorine
400
A pure substance that cannot be broken down
What is an element
400
The radioactive element that is often found in basements and causes illness
What is radon
400
The number of electron shells in a potassium atom
What is 4
400
The section of metals in the center of the periodic table
What is the transition metals
400
The group of elements that have almost 0 electronegativity
What is the noble gases
500
The name of the experiment that determined that the atom is mostly empty space
What is the gold foil experiment
500
The type of radiation that the sun gives off
What is gamma radiation
500
The number of valence electrons in carbon
What is 4
500
The section of the periodic table that separates the metals from the non-metals
What is the metalloids
500
The energy required to remove an electron
What is ionization energy