Science 9 Weeks Test Flashcards
What part of a solution is in the largest amount
Solvent
A well mixed mixture with a solvent and solute
Solution
Which part is present in the smaller amount
Solute
Elements in the same group have the same # of
Valence electrons
What is solubility
How much solute can dissolve in a solvent at a given temperature
The ____ ____ of an element is the number of protons in the nucleus of an atom
Atomic number
The row of elements across the periodic table
Period
____ ____are those electrons that are held most loosely
Valence electrons
A mixture that has so much solute that no more can dissolve
Saturated
A ______ is two or more elements that are chemically bonded
Compound
In a solution, the ____ is dissolved by the ____
Solute, solvent
Protons and neutrons of an atom are located in the _____
Nucleus
The smallest unit of an element that has all the basic properties of an element is called an ____
Atom
What has no positive or negative charge
Nuetron
What is not a factor that affects the solubility of a substance
Location
What are the elements in the same column of the periodic table
Family
How are elements represented on the periodic table
Symbols
How is the periodic table organized
By atomic number
What is the greatest number of valence electrons an atom can have
8
What material attracts iron
A magnet
Where on a magnet is the magnetic field the strongest
At the poles
In a magnetized material, all or most of the magnetic domains are arranged in the same ____
Direction
You can destroy a magnet by
Heating it
Every million years or so, Earths magnetic field has
Reversed direction
The region of Earths magnetic field shaped by solar wind is called
The magnetosphere
The area of a magnetic force around a magnet is called the magnets
Magnetic field
