Periodic Table 1
The electrons in the outer energy level
What are valence electrons?
The location of protons and neutrons.
What is the nucleus?
Group 18 or 8A on the periodic table are also known as these
What are the noble gases?
Tiny particles that make up all matter.
What are atoms?
The number of protons is represented by this
What is the atomic number?
This group includes Boron and Silicon
What are metalloids?
Atoms with a completely full outer most (valence) energy level is this.
What is nonreactive or noble gases?
Columns on a periodic table
What are groups?
This was the first person to make a real microscope
Who is Anton Van Leeuwenhoek?
Put .000324 into scientific notation
What is 3.2x10-4?
This group are the most likely to form +2 ions
What are the alkaline earth metals?
How many electrons are in the atom Na+1 (Atomic #11)
What is 10?
Rows on the periodic table
What are periods?
This has the ability to magnify 1000x and distinguish between two objects
What is a light microscope?
The three classes of elements are these.
What are metals, metalloids, and nonmetals?
The maximum number of electrons the 1st orbital, or energy shell, can hold.
What is 2?
This decreases from left to right on a periodic table
What is atomic radius?
This group on the periodic table most commonly has an oxidation state of -2
What is Group 16 (Chalcogens)?
Elements in the same group share this.
What are the same number of valence electrons
Atoms with the same number of protons but different number of neutrons are these
What are isotopes?
10-10 is the scientific notation for
What are Angstroms?
This is a nonmetal that is liquid at room temperature
What is Bromine?
Place in order from largest to smallest
Pico-, milli-, centi-, nano-, micro-, deci-
What is Deci-, centi-, milli-, micro-, nano-, pico-?
Used to look at the inside of a object or organism
What is a transmission electron microscope?
Use this if you want to look at a 3-D image of something very small at a high resolution
What is a scanning electron microscope?