Show:
Periodic Table
Elements and Compounds
Metals, Non-metals, and Metalloids
History of the Atomic Model
Vocabulary
100
What is the second element on the periodic table
What is Helium
100
What is the difference between an element and compound
What is an element has one type of particle while a compound is a mixture of two or more types of particles
100
What does the staircase on the periodic table represent
What is Metalloids
100
Empedocles thought matter consisted of 4 elements, what were there names?
What is earth, air, fire, and water
100
What is Density?
What is the amount of mass containing in a given volume. Density= Mass divided by volume
200
How do you find the number of neutrons?
What is atomic mass minus atomic number
200
What three groups can elements be classified into?
What is Metals, Non Metals, and Metalloids
200
Is bronze an alloy?
What is no
200
What where the Alchemists 3 goals
What is 1. change cheap metal into valuable ones 2. Find a substance that give them eternal life 3. Produce a universal solvent that dissolves all substances
200
what is a valence electron?
What is the electrons in the outter most shell in atom
300
Where would you expect to find the smallest atoms of elements on the periodic table?
What is top right hand side
300
What is the only way to break down a compound?
What is through chemical change
300
What percent of metals make up the periodic table?
What is 75%
300
On 1766 Henry Cavendish isolated oxygen by heating mercury oxide. True or false, if false state what makes it wrong
What is False, it was Joseph Priestly
300
What is the atomic mass number?
What is the number of protons and neutrons in an atom's nucleus.
400
What row is Halogens on?
What is Row 17, second last, down
400
what is an Covalent compound?
What is Covalent Bonding: Bonding between non-metals consists of two electrons shared between two atoms. In covalent bonding, the two electrons shared by the atoms are attracted to the nucleus of both atoms.
400
Is Argo able to conduct thermal heat?
What is No
400
Antoine Lavoisier was the 1st person to define an element as? How many elements did he identify?
What is an element as the final form that can't be broken down further by chemical reaction. He identified 23 elements.
400
What is the difference between qualitative and quantitative?
What is Qualitative is how it looks, feels and smells (quality) and quantitative an property that gives off numerical info (quantity)
500
The rows on the periodic table are called A.) Classes B.) Periods C.) Groups D.) Families
What is B.) Periods
500
what is an ionic compound?
What is Ionic bond is the result of the transfer of one or more electrons from a metal onto a non-metal
500
Physical properties of metals A.)Not shiny, malleable, ductile and solid at room temperature B.) Shiny, non malleable, ductile, and solid at room temperature C.)Shiny, malleable, ductile, liquid at room temperature and non conductor or insulator of heat D.) Shiny, malleable, ductile, solid at room temperature, and conductor of heat
What is D.)
500
In 1772 what did Daniel Rutherford and Karl Wilhelm Scheele isolate?
What is nitrogen
500
What is isotope?
What is What is any of 2 or more forms of an element, that have the same number of protons, but different number of neutrons.