Atoms and Matter
Periodic Table
Compounds and Molecules
Mixtures
Miscellaneous
100
What is an element?
The simplest form of matter.
100
What is the symbol of platinum, Pt, Platinum, 195.084, 78, or transition metals?
Pt
100
What makes up compounds?
Molecules.
100
What is the difference between compounds and mixtures?
Mixtures involve a physical change while compounds involve an chemical change.
100
Are electrons spread out or in one place in an atom?
Spread out.
200
Are atoms and elements the same thing?
No, Atoms make up elements and elements don't make up atoms.
200
What two numbers are on the square of an element on the periodic table?
Atomic mass and atomic number.
200
What makes up molecules?
Two or more atoms.
200
What is a mixture?
When two or more substances join together without changing the nature of the component substances.
200
Are metals similar to nonmetals?
Hardly
300
What are the three particles in an atom?
Protons,Neutrons ,and Electrons.
300
How is the periodic table numbered?
Atomic number
300
What is an ion
An atom that gains or looses an electron.
300
What is a solvent?
A mixture in which a solute dissolves into.
300
What does the atomic number represent?
The number of protons in the nucleus.
400
How many different models where there ( do not use book)?
Five.
400
What is the difference between groups and periods?
Periods make up the rows of the periodic table while groups make up the columns.
400
What is the difference between an ionic bond and a covalent bond?
Ionic bonds loose or gain electrons while covalent bonds share electrons.
400
What are colloids?
Liquid mixtures containing small particles that do not separate out.
400
What are the molecules for carbon dioxide.
Two oxygen and one carbon.
500
Which one is negative, Protons or Electrons?
Electrons.
500
Which large group of elements has the properties of conducting heat and electricity and the ability to be bent and stretched?
Metals
500
What is a valence electron?
An electron in the atoms outermost shell.
500
What are five ways to separate a mixture?
Magnetism, filtration, evaporation, distillation, and paper chromatography.
500
What are the three factors that affect the rate of dissolving?
Temperature, surface area, and agitation.
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