A horizontal row in the periodic table is called a(n ) ____________________
What is period?
What element is this?
What is Carbon?
Properties/changes that can be observed without changing matter are called __________________
What is physical properties/changes?
Describes how a substance interacts with other substances. Two or more new substances are produced.
What are chemical properties/changes?
Atomic mass = #__________ + #___________
What are protons and neutrons?
Elements in Group 1
What are Alkali Metals
The group that neon belongs to.
What is Noble Gases?
Solid, liquid, gas are all called ____________ changes.
What is phase?
True or false: Phase changes are chemical changes.
What is false?
The "8" stands for _________________
The "16" is the ___________________
What is atomic number, atomic mass?
A vertical column in the periodic table is called a(n) ____________________
What is a group/family?
The three basic types of elements.
What are metals, non-metals, metalloids?
_______________ is an example of a physical change.
What is cutting, crushing, phase change, etc....?
Examples of chemical properties:
What is rust/oxidation, flammability, conductivity, toxicity, etc...?
Physical properties of gold
What is shiny, hard, heavy mass, etc...?
The atomic #
What is # of protons in an atom?
The most common type of element on the periodic table.
What are metals?
Examples of physical properties:
What are brittle, flexible, malleability, color, etc...?
True or false: cooking an egg is a chemical change
What is true?
Nitrogen has 7 protons and ____________ electrons.
What is 7?
The electrons in the outer shell of an atom.
What are valence electrons?
Group 17 is called ______________.
What are the Halogens?
Matter with definite shape, definite volume.
What is a solid?
True or false: Sublimation (solid to gas) is a chemical change.
What is false?
Noble gasses are non-reactive because....
What is "they have a full outer valence electron shell (8 valence electrons)"?