Matter
What is matter?
Anything that has mass and volume (takes up space)
What property is defined as being able to be pulled into thin wires?
Ductility
What is the name of a positively charged subatomic particle?
Proton
What is the name for a column? What is the name for a row?
Group/ family and period/series
How many orbitals does potassium have?
4
What would kool-aid be classified as? (classification of matter flowchart)
Homogenous mixture
What is the formula to calculate density?
density= mass/ volume
How do you calculate the number of neutrons?
Subtract the atomic number from the atomic mass
What group is referred to as "inert" or non-reactive?
Noble gases
The WHMIS symbol that is a large exclamation mark warns of which danger?
Irritant
Copper (Cu) is classified as what? (classification of matter flowchart)
Element (pure substance)
Name two signs that a chemical reaction has occurred
odour change, temp change, colour change, formation of bubbles, precipitate
What is the atomic notation for Magnesium?
2412Mg
Name one element belonging to alkaline earth metals and one element belonging to the halogens?
Be,Mg, Ca
F, Cl, Br
What two elements are liquid at room temperature?
Mercury and Bromine
21
Melting ice is an example of a physical or chemical change?
physical change
What are the # of protons, neutrons, and electrons for potassium?
19 protons, 19 electrons, 20 neutrons
The metalloids, divide the metals from the non-metals, metalloids have properties of both
What is the chemical formula for table salt?
NaCl
What is the arrangement of particles in a gas?
Random and spread out
Burning wood is a physical or chemical change?
Chemical
Draw a Bohr-Rutherford Diagram for Be (beryllium)
Be, 5 neutrons, 4 protons
4 electrons drawn (2 shells, first shell full with 2 electrons, second shell with 2 electrons)
What is the trend for atomic radius down the periodic table and across?
Increases down a group, decreases across
How many elements are naturally occurring?
92