Column 1
Column 2
Column 3
Column 4
Column 5
100
The electrons in the outer energy level
valence electrons
100
A subatomic particle with a positive charge
proton
100
The atomic number tells you
number of protons (and electrons) an atom of an element has
100
A subatomic particle with a negative charge.
electron
100
Which is NOT considered a pure substance?
air, salt, water, lead
air
200
The location of protons and neutrons.
nucleus
200
what type of matter has a FIXED shape and a FIXED volume?
solid
200
What is the electron configuration of an oxygen atom?
1s2 2s2 2p4
200
Found in a zigzag line on the periodic table.
metalloids
200
The location of electrons.
Electron Cloud
300
Difference between atomic mass and atomic number
atomic mass: protons & neutrons
atomic number: protons
300
J.J. Thomson used a device called an cathode ray tube to discover what subatomic particle?
Electrons
300
Rows on the periodic table
periods
300
Columns on a periodic table
groups
300
What are physical properties of matter? (need at least 6)
mass, volume, length, odor, density, melting point, boiling point
400
These are the properties of nonmetals.
- brittleness
- low boiling/melting points
- dull
- poor conductors
400
These are the properties of metals.
- conductivity
- high melting points
- most are solids at room temperature
- shiny
400
The majority of the elements on the periodic table are this.
metals
400
What elements shares 1 electron or gains 1 electron to attain a stable noble gas configuration?
alkaline metals, alkaline earth metals, halogens, ions
Halogens
400
What are the three types of elements on the periodic table
\metals, metalloids, and nonmetals
500
What is the Lewis Dot Structure of Carbon?
500
The modern periodic table is organized according to this.
increasing atomic number
500
What did the scientist rutherford discover?
he discovered that positively charged particles exist in a small, centralized nucleus
500
What is the ability to attract a bonding pair of electrons?
Electronegativity
500
Located on the right side of the zigzag line.
Nonmetals