Subatomic Particles
An subatomic particle with a negative charge
What is an electron?
The electrons in the outer energy level
What are valence electrons?
The atomic NUMBER tells you...
What is the number of protons an atom of an element has?
The majority of the elements on the periodic table are this.
What are metals?
Tiny particles that make up all matter.
What are atoms?
A subatomic particle with a positive charge.
What is a proton?
2-8-8
What is the maximum number of electrons the orbital, or energy shell, can hold?
Columns on a periodic table
What are groups?
Found in a zigzag line on the periodic table.
What are metalloids?
The four most common/useful elements for survival
What are Carbon, Nitrogen, Hydrogen, and Oxygen?
A subatomic particle with no charge.
What is a neutron?
An atom with a completely full outer most (valence) energy level is this.
What is nonreactive/noble gas?
Rows on the periodic table
What are periods?
What are non metals?
The size humans would be if atoms were the size of a cheerio
The location of electrons.
What is outside/orbiting the nucleus?
Elements in group 1 are very reactive. How many valence electrons do they have?
One
The top right and bottom left corners of the periodic table (except noble gases)
What is the most reactive elements
These are the properties of nonmetals.
What are brittleness, low boiling/melting points, dull, not ductile or malleable, poor conductors?
The amount of empty space in an atom.
What is 99.9%
The location of protons and neutrons.
What is inside the nucleus?
Elements in the same group share this.
What are the same number of valence electrons
The modern periodic table is organized according to patterns. List three patterns.
Increasing atomic number
Increasing atomic mass
Number of valence electrons
Number of protons
Energy Levels
These are the properties of metals.
What are conductivity, high melting points, most are solids at room temperature, shiny, ductile, and malleable?
Nuclear fusion and stars exploding
What is how elements are made?