Chapter 2 Flashcards
Three particles of an atom
- Protons
- Neutrons
- Electrons
Location of electron
Outside the nucleus or orbitals
4 elements in the human body
Hydrogen, Oxygen, Carbon, Nitrogen
Three types of chemical bonds
- Covalent
- Ionic
- Hydrogen
What is an isotope?
Atoms of the same element that differ in the number of Neutrons.
How much covalent Carbon has?
4
All Hydrogen has how many protons?
1
How many neutrons does Carbon have?
6
(Be) has 4 atomic numbers and 9 atomic mass, find how many neutrons.
5 neutrons
Covalent of Sulfur (16 atomic number)
2 covalent
Define Radiostopes
Unstable isotopes by emitting energy
Define matter
Anything that takes up space
Define atom
Units of matter, that cannot be broken down
How much atomic mass unit Protons and Neutrons have
1 atomic mass unit
Shell model of electron
How many are in the first shell
2
Shell model of electron
How many are in the second
shell
8
4 element that make up the body
1.) Carbon
2.) Oxygen
3.) Hydrogen
4.) Nitrogen
Atomic mass (weight) is made up by
Protons and Neutrons
Isotopes of Hydrogen will have 1 Proton but …
Different Neutron
Define Isotopes
The same element that differs in the number of Neutrons
Define Covalent bonds
Two atoms come together and share electrons
What are three electronegative elements found in biological organisms?
1.) Oxygen
2.) Nitrogen
3.) Sulfur
Nitrogen has how many covalent bonds?
3
Hydrogen has how many covalent bonds
1
Oxygen has how many covalent bonds?
2
Covalent bonds of these elements
C =
N =
O =
S =
H =
C = 4
N = 3
O = 2
S = 2
H = 1
Draw Carbon (biological element), with the correct number of protons, neutrons, and electrons.
Draw hydrogen bonding
