LearnSmart CH 1 Flashcards
What are the characteristics of all living things?
- Responsiveness to stimuli.
- Homeostasis.
- Reproduction.
The anatomical term describing the groin is ________.
inguinal
Elements prefer to have an outer shell completely full of electrons. This tendency is called the _____ rule.
octet
What are the 4 most common elements of the human body?
Oxygen, Nitrogen, Carbon, and Hydrogen.
The atomic mass number of Carbon is _____.
12.01
The outermost (energy) electron shell is referred to as the _______ shell.
valence
What are forms of matter?
Solid, liquid, and gas.
What is the cation that determines the pH of blood?
H+
Atoms share electrons in a ________ bond.
covalent
ID the subatomic particles that are present in the same numbers amongst isotopes of the same element.
Protons and Electrons.
Carbon can form _ covalent bond(s) and Nitrogen can form _.
4;3
Many carbon atoms are sometimes bonded together to form a “carbon ________”.
skeleton
The sharing of electrons between atoms results in a __________ bonded molecule.
covalently
Rank Hydrogen, Nitrogen, Oxygen, and Carbon in order of increasing electronegativity.
Hydrogen, Carbon, Nitrogen, Oxygen.
The pH of a solution is a measure of the relative amount of _________ it contains.
H+
