Atoms
What charge does a neutron have?
Neutral
An atom with the same number of protons, neutrons, and electrons has a net charge of
0
What holds atoms together to form compounds?
Chemical bonds
What is the outer layer of electrons called?
What organelle is responsible for holding the DNA?
The nucleus
Positive
Changing the number of electrons does what to an atom
Changes the charge
What weak type of bonding allows a gecko to climb walls
Van der Waals forces
When you create a chemical bond what do you do to the elements involved? Think of Sodium and Chlorine
You change the chemical properties
Where are lipids produced in the cell?
The smooth endoplasmic reticulum
What charge does an electron have?
Negative
Changing the number of protons does what?
Changes the element
Which bond is formed when electrons are shared between atoms
Covalent
What are the individual charged molecules in an ionic bond called? Na and Cl bond to form Na+Cl- (sodium chloride)
Ions
What organelles produce proteins?
The ribosomes
What determines the atomic number of an element?
The number of protons
Changing the number of neutrons in an atom creates what?
An isotope
Which bond is formed when electrons are transferred between atoms
Ionic
What is one of the most important compounds for living things? Humans are 60% this
Water (H2O)
The nucleus
What two subatomic particles determine the atomic weight of an element
The protons and neutrons
What are the 4 elements essential for living things?
Carbon, hydrogen, oxygen, and nitrogen
What sub-atomic particle is responsible for chemical bonds?
The electron
What is the most important element for living things?
Carbon
Where does cellular respiration take place in the cell?
The mitochondria