Matter Vocabulary
Everything that has mass and takes up space
What is Matter
Groups number 1A to 8A identify the number of these in different elements.
What are valence electrons?
This results in a new substance and is permanently changed
What is a Chemical change
Materials that can be easily separated and keep their own properties
What is Mixture
Matter cannot be created or destroyed is stated in what Law?
What is the law of conservation of matter?
What holds atoms together in a molecule?
What is chemical bonds
Vertical columns on the periodic table numbered from left to right.
What are groups?
Which change occurs when you put ice cream in a blender?
Physical change
NaCl (Table salt) and H2O combine in a solution to form this kind of mixture.
What is homogeneous?
Atoms of only one type with specific characteristics are called this.
What is an element?
The smallest building block of matter that still has specific properties of an element
What is Atom
The weight of protons, neutrons, and electrons in an element.
Atomic Mass
Flammability is an example of what type of property
Chemical property
Soil, a salad, and sugar water are all examples of
heterogeneous mixtures.
H2O, H2, and CO2 are all examples of
What are chemical formulas?
The written symbols of elements and subscripts. (CO2)
What is a chemical formula
The horizontal rows on the periodic table.
What are periods?
A campfire is an example of what kind of change.
What is chemical
Lemonade, which is evenly mixed, is a.
homogeneous mixture
The tarnishing of metal is an example of a(n) ____________________ change.
What is chemical
All elements are composed of extremely small, sub-atomic, particles called
What are protons, neutrons, and electrons?
What characteritic of elements DECREASES as your move from left to right on the periodic table?
What is reactivity?
If you heat a liquid and measure the temperature at which it boils, you are observing a
What is a Physical property
What is a key difference between mixtures and solutions?
What is A mixture is not evenly mixed and a solution is evenly mixed.
The number of these is identified by the period number. These increase from top to bottom on the periodic table.
What are energy levels/electron shells/electron rings?