Vocab
Periodic Table
Protons, Electrons, & The Nucleus
Electromagnetic Spectrum
Miscellaneous
100
The smallest unit of matter that retains all properties of a substance.
What is an atom?
100
The element symbol for lead.
What is Pb?
100
All postitive charge and most of the mass is located here.
What is the nucleus?
100
On the visible spectrum, this color has the least amount of energy.
What is red?
100
Elements of the same group have the same amount of these.
What are valence electrons?
200
The distance measured from crest to crest of one complete wave.
What is wavelength?
200
Dimitri Medeleev created this.
Who created the modern periodic table?
200
This subatomic particle is negatively charged.
What is an electron?
200
On the visible spectrum, this color has the most energy.
What is violet?
200
All matter is made up of this.
What are atoms?
300
This is measured in waves per second.
What is frequency?
300
The columns on the period table are called...
What are groups?
300
The discovery of the electron proved this.
What is that atoms could be divided and have parts?
300
This happens to wavelengths as frequency increases.
What is wavelengths decrease?
300
His experiment improved that atoms are mostly made up of empty space.
Who is Rutherford?
400
Helium ions that are positively charged.
What is an Alpha particle?
400
The rows on the periodic table are called...
What are periods?
400
These subatomic particles orbit around the nucleus.
What are electrons?
400
This has the least amount of energy on the electromagnetic spectrum.
What are radio waves?
400
All atoms masses are compared to this element.
What is carbon 12?
500
A fixed packet of electromagnetic radiation that has a given amount of energy.
What is a photon?
500
The most stable elements on the periodic table.
What are noble gases?
500
This subatomic particle is postively charged.
What is a proton?
500
This has the most energy on the electromagnetic spectrum.
What are gamma rays?
500
Which effects the reactivity of a metal more, increased atomic radius or shielding?
What is sheilding?
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