Elements
Life is composed of _____, which is anything that occupies space and has mass.
What is...
matter
Location of protons and neutrons
What is...
the nucleus
Accounted for 40% of deaths in WWII
What is...
influenza
Definition of ionic bond
What is...
attractions between ions of opposite charges
Definition of covalent bond
What is...
sharing of electrons
A substance that cannot be broken down to other substances by ordinary chemical means.
What is...
an element
Number of protons Carbon has
What is...
6
Living mammal with the heaviest brain
What is...
the sperm whale
It weighs about 20 lbs (4 times heavier than a human's brain)
Reason atoms form ionic bond
What is...
to have a complete outer shell
Covalent bond with electrons that are not shared equally
What are...
polar covalent bonds
There are (number of ??) naturally occurring elements.
What is...
92
Variant forms of an element with same number of protons and electrons but different number of neutrons
What is...
an isotope
By the time you are 75 years old you will have spent this many years sleeping
What is...
23 years
Ion with a positive charge
What is...
a cation
Polar covalent bonds are formed when one atom is more ____ than another atom
What is...
electronegative
Boron, chromium, copper, fluorine, iron, and other elements are considered _____ elements of organisms.
What is...
trace
Determines reactivity of an atom
What is...
Number of electrons in the electron shell
Bromidrosis means that this body part smells badly
What is...
your feet
The term generally used to refer to the stable solid compounds that are formed by ionic bonds
What are...
salts
Molecule formed when two atoms of the same type bond together
What is...
diatomic molecule
Oxygen, hydrogen, carbon, and ____ make up 96% of the human body.
What is...
nitrogen
Number of electron shells and number of electrons in outer shell that a sodium atom has
What is...
three electron shells and one electron in outer shell
The speed at which the spray shoots out of your nose when you sneeze is ____ mph
What is...
100 mph
_____ affects the strength of ionic bonds
What is...
the environment
Forms when atoms share two pairs of electrons
What is...
a double bond