Temperature
Periodic Table
Chemical Equations and Reactions
The Atom
Radioactivity
100

unit of measure in which water boils at 212 degrees

What is Fahrenheit?

100

the number at the top left of each element

What are protons and electrons?

100

when two different elements come together to form a compound

What is synthesis?

100

the center of the atom that contains protons and neutrons

What is the nucleus?

100

a substance is said to be this if it emits waves of energy

What is radioactive?

200

based on freezing at 0 degrees, boiling at 100 degrees

What is Celsius?

200

the number at the bottom of each element

What is atomic mass?

200
when a compound breaks apart

What is decomposition?

200

negatively charged particles that travel in orbits around the nucleus

What is an electron?

200

the reason radioactive elements decay

What is to be stable?

300

no thermal energy or absolute zero is used in this measuring system

What is Kelvin?

300

a metal containing 29 protons

What is Copper?
300

a bond between two elements in which the outer energy level is shared

What is covalent?

300

his model showed the electrons whipping around the nucleus at random

What is Rutherford's model of the atom?

300

the type of radioactive decay in which a proton is created from a neutron

What is beta?

400

this happens as kinetic energy increases

What is temperature increases?

400

an element with a mass of 40

What is Calcium?

400

in this type of bond an electron is shared and the charge changes, then opposite charges attract

What is ionic?

400

a version of an element that has a different number of electrons than normal, giving it a positive or negative charge

What is an ion?

400

a type of radioactive decay in which a proton and neutron are gained

What is alpha?

500

a noble gas that is also radioactive

What is Radon?

500

NaCl is bonded in this way

What is covalent? 

500

the element that is used to detect the age of rocks

What is Carbon?