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100
If the frequency of a wave doubles, how would the wavelength change?
Wavelength gets smaller, it would be cut in half.
100
What is the formula for Iron (III) Chloride?
FeCl3
100
What are the properties of the alkali metals? (any)
One valence electron, high reactivity, cations with a +1 charge, soft metals, silvery-white color, good conductors of electricity and heat
100
On the periodic table, a _______ has elements with similar properties, such as reactivity and number of valence electrons.
Group or Family
200
Given the isotope notation, what does the "14" represent?
The mass number or the total number of protons and neutrons
200
The ability of a substance to be hammered or rolled into thin sheets. Is what property of a metal?
Malleable
200
Which of the following shows the correct comparison of atomic radii? (hint unit 3 notes)
F > P
Cs > Mg
Be > Cs
Cs > Mg
200
What is the electron configuration of phosphorus?
300
Which element is represented by the following electron configuration?
Tellurium
300
Do ionic and covalent compounds follow the same rules when naming formulas?
No. Ionic compounds only change the second element to -ide. Covalent compounds use prefixes AND change the second element to -ide.
300
When writing the formula from the name, you must drop and cross the charges for this type of compound.
Ionic compounds
300
When naming this compound’s formulas, you must use prefixes.
Covalent compounds
400
How did Rutherford's gold foil experiment contribute to the discovery of the nucleus?
By revealing the concentrated positive charge in a small, dense nucleus
400
Microwaves have a longer wavelength than X-rays. How does the frequency of microwaves compare to that of X-rays?
Microwaves have a lower frequency than X-rays.
400
Name the compound Na2O (Hint identify the type of compound 1st!)
Sodium Oxide
400
Lewis dots diagram, the dots represent what kind of electrons?
valence electrons
500
In an ionic bond, the metals will always have what kind of charge?
positive
500
Electrons move freely in a sea of electrons in what type of bond?
Metallic bond
500
What is the property of matter that allows CO2 gas molecules to be squeezed together into a smaller volume?
Compressibility
500
When the frequency of a wave increases, the wavelength decreases, meaning when one property goes up, the other goes down and vice versa.. This is called a(n) ________ relationship.
inverse