Which type of element is a semiconductor and a shiny/brittle solid?
Metals, nonmetals, or metalloids?
Metalloid
The state of matter that has a definite volume, but no definite shape.
Liquid
This element is shown with the atomic symbol Rn.
Radon
The ________________ _________________ is written using one or two letters. (It's an abbreviation of the element's name)
Example: Oxygen is represented with an O
Element Symbol
The Hill System states that when this element is present, it is always listed first.
Carbon
Anything that has mass and takes up space.
Matter
How many elements on the periodic table are metalloids?
6
The state of matter that has a definite shape and a definite volume.
Solid
Calcium (Ca)
atomic number
This element should be listed immediately after carbon according to the Hill System.
Hydrogen
The basic building block of all matter.
Atom
True or False?
Most elements on the periodic table are nonmetals.
False- only 18 elements are nonmetals.
The state of matter that has no definite shape and no definite volume.
Gas
This element has an average atomic mass of 20.18
Neon
Using this image, determine how many protons does an oxygen atom has.
8
Glucose contains 6 oxygen atoms, 6 carbon atoms, and 12 hydrogen atoms. What is the molecular formula for glucose?
C6H12O6
Matter made of just one type of atom.
Element
If an element is malleable, it can be...
hammered into thin sheets.
A proton is a subatomic particle that has what type of charge?
Positive
All elements EXCEPT ______________ contain an equal number of protons and neutrons.
Hint: This element has one proton but lacks a neutron.
Hydrogen
_______________ ____________ is the average mass of an element's protons and neutrons.
atomic mass
Hydrochloric acid has a molecular formula of HCl. How many Hydrogen atoms does it contain? How many chlorine atoms?
1 hydrogen and 1 chlorine
The center of an atom where protons and neutrons are found.
Nucleus
If an element is ductile, it can be...
drawn into wire.
Which subatomic particle has a neutral charge, and is found in an atom's nucleus with protons?
Neutron
Look at your periodic table. Identify:
1 metal, 1 metalloid, and 1 nonmetal
answers will vary
How many total elements are on the periodic table?
118
Following the Hill System's guidelines, which element would be listed first? Why?
Beryllium (Be) or Sulfur (S)?
Sulfur
A ___________________ is made of 2 or more elements that are bonded together in a fixed ratio.
Ex: H2O, CO2
Compound