Vocabulary
What is an Atom?
Protons, Neutrons, and Electrons
How many groups are in the periodic table?
18
What are the three main types of elements?
Metals, metalloids, and non-metals
In the Dorito lab, we burned a Dorito chip to heat up a soda can of water (thermal energy). What kind of energy was stored inside of the Dorito chip?
Chemical energy
A fundamental building block of a type of matter made up of unique atoms.
What is an Element?
Which part of the atom determines the element or identity of the atom?
The number of protons
How many periods are in the periodic table?
7
What type of element is brittle, usually a solid, and does not conduct electricity or thermal energy?
Non-Metals
There is about 1.0 x 1020 atoms found in one grain of sand at the beach. Is this a large number or small number?
Large number! 100,000,000,000,000,000,000
The ability an atom has to attract or repel
What are the two heaviest parts of the atom?
Protons and Neutrons
What was Mendeleev able to predict using his periodic table?
He predicted elements that had no yet been discovered and their properties.
Which type of element is MOST commonly found on the periodic table?
Metals
What element has an atomic mass of 40amu and a charge of -20?
Calcium - 20 protons, 20 neutrons, 20 electrons.
This type of element has luster (shiny), conducts thermal and electric energy, and is malleable and ductile.
What is a Metal?
Which part of the atom has a negative charge and is responsible for reactivity (reactions)?
Electrons
Using the periodic table, what is the element name for "Nd"?
Neodymium
Silicon is found in computer processing chips. Even though it conducts electricity, it does not conduct electricity quickly or completely. What kind of element is Silicon?
A metalloid
Lithium, Sodium, and Potassium are all found in Group 1 on the Periodic Table. Why are these three elements in the same column?
Because they share similar properties - soft, silvery metals that react violently with water.
The scientist who left a blank in the periodic table to predict undiscovered elements and their properties.
Who is Dmitry Mendeleev?
How do you find the atomic mass of an atom?
Add the number protons and neutrons (amu).
What is the atomic mass for the element "Mendelevium"?
258.1 amu
How many metalloid elements are found on the periodic table?
7 elements - Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium, Polonium
Fill in the lyrics from the Periodic Table Song:
Boron, ________ everywhere, ________ all through air, Oxygen so you can breathe, and __________ for your pretty teeth!
Carbon, Nitrogen, Fluorine