Vocabulary
The number of protons in an atom- unique to each type of atom
What is the Atomic number
Found in the nucleus of an atom
What is Protons and neutrons
water is composed of what
What is one oxygen and two hydrogen atoms
The 6 elements essential to human life
What is Oxygen, Carbon, Hydrogen, Nitrogen, Sulfur, Phosphorus
You can die from drinking too much of this
What is water
A chemical that results when two or more atoms join together chemically
What is a molecule
When an atom loses an electron it becomes this.
A positively charged ion
The reason it gets colder at night in the dessert than near the ocean
What is waters high heat capacity
Number 26 on the periodic table
What is Iron
The only letter that does not appear in the periodic table of elements
What is J
One of several forms of an element, each containing the same number of protons but a different number of neutrons.
What is Isotope
The total amount of atoms in this molecule C22H44O
67
The reason why water is so crucial for all life support
What is waters polarity
A collection of atoms that all have the same number of protons
What is an element
Mars is red because of this elements presence
What is Iron
An attractive force that holds molecules of the same substance together
What is Cohesion
When two atoms share a pair of electrons
What is a covalent bond
Solid waters high density, waters ability to dissolve many things, and cohesion are a result of this
What is Hydrogen Bonding
The sum of the protons and neutrons in an atom
What is the atomic mass
Many radioactive elements do this
What is glow in the dark
A chemical bond formed by the sharing of electrons between two or more atoms.
What is a covalent bond
The element Sulfur is comprised of all atoms that have 16 protons. How many neutrons are in sulfur-34.
18 electrons
The unequal sharing of water giving it both a positive and negative charge on opposite ends
Polarity
The amount of elements on the periodic table
What is 118
The most expensive substance on earth