9 Weeks Test 3 Flashcards
What is the number of protons and neutrons in one atom of lithium A. 3 B. Li C. Lithium D. 6.941
D
What is the symbol for chlorine?
CL
What name is this?
Ca
Calcium
What is the atomic mass for carbon if the atomic number is 6?
12
How many electrons does an atom of krypton have? 36 Kr Krypton 83.798
36
What is the atomic number of iron? ? Fe Iron 55.847
26
I what is the abbreviation for sodium?
Na
How many protons does an atom of calcium have? 20 Ca Calcium 40.077
20
How many neutrons does an atom of arsenic have? 33 As Arsenic 74.922
42
What is the atomic number of arsenic?
33
What is the atomic mass of gold if it has 118 neutrons? 79 Au Gold ?
197
What letter is the number of protons in one atom of lithium? A. 3 B. Li C. Lithium D. 6.941
A.
What letter is the atomic mass? A. 3 B. Li C. Lithium D. 6.941
D
What is the atomic mass?
79
Au
Gold
?197
What is a material that attracts iron and materials that contain iron?
Magnet
Where on a magnet is its magnetic force strongest?
At either the north or south poles
In a magnetized material, all it most of the magnetic domains are arranged in the same ______
Direction
You can destroy a magnet by _______
Heating it
Every million years or so , Earth’s magnetic field has ________ __________
Reversed direction
The region of Earth’s magnetic field shaped by solar winds is called the ____________
Magnetosphere
The area or magnetic force around is called the magnet’s
Magnetic field
A group of atoms with their magnetic fields pointing the same direction is called a(n) ________ _______
Magnetic domain
A magnet made from material that keeps its magnetism for a long time is called a ________ magnet
Permanent
A glowing region in Earth’s atmosphere caused by charged particles from the sun is called a(n) ________
Aurora
Well mixed mixture that contains a solvent and at least one solute is called a _________
Solution
Which part of the solution is present in the largest amount?
The solvent
What does a substance present in the solution and the smaller amount
Solute
I was within a group always have the same number of ____ _____
Valence electrons
What is solubility
The measure of how much solute can be dissolved in a solvent at a given temperature
The ____ _____ of an element is the number of protons in the nucleus of an atom.
Atomic number
_______ _______ are those electrons that are held more loosely in an atom
Valence electrons
A ______ is two or more elements that are chemically combined
Compound
And the 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 a ____
Atom
Which of the following has no positive or negative charge?
Neutron
Which of the following is not a factor that affects the solubility of a substance A. Pressure B. Temperature C. Type of solvent D. Location
D. Location
What are the elements in the same column of the periodic table called?
Family
How are elements represented on the periodic table?
Symbol
How is the periodic table organized
By atomic number.
What is the greatest number of valence electrons an atom can have?
8
What are the two major factors that scientists use to classify climates?
Temperature and precipitation
The day to day change in temperature and precipitation make up an areas ______
Weather
What did Koppen also consider when classifying climates?
Vegetation
Seasons are caused by?
The tilt if earths axis
Which of the following is NOT a major climate region? Dry Ice cap Tropical Rainy Temperate marine
Ice cap
Permanently frozen tundra soil is called _________
Permafrost
Which of the following is true about the tilt of earths axis?
It always points towards the sun
It is always stationary
It moves to always point away from the sun
None of the above
It is always stationary
T or F
Thin tree rings indicates that that year was warm and wet
F
If a tree ring for a particular year is thick, what does that indicate about the year?
Warm and wet
At about what angle is earths axis is tilted?
23.5 degrees
