Periodic Table
How many protons does Nitrogen have?
7
When electrons are shared
covalent
Type of bond within a water molecule
polar covalent
what ion does the pH scale measure
hydrogen
because water can dissolve a lot of solvents it is called
universal sovent
Protons and neutrons added together make up an element's what?
atomic mass
When electrons are transferred, one atom gains & one atom loses
ionic
water is a ________ molecule because electrons are shared unequally
Polar
Acids are found where on the scale
what range of numbers?
0-7
This property of water allows organisms to live in frozen bodies of water
ice floats
How many total electrons in a sodium atom
11
Bond between a metal & a non-metal
ionic
The _____________ of water is slightly negative and the ______________ of water is slightly positive
Oxygen; Hydrogen
Bases are found between which numbers on the pH scale?
7-14
Which property of water explains why it takes a lot of heat to change the temperature of water
high specific heat
What is the maximum number of electrons an atom can have on the outside
8
bond between 2 non metals
covalent
Water sticking to itself and forming a droplet demonstrates this property
cohesion
Acids have excess ___________ions & bases have excess ___________ions
H+; OH-
Water climbing a tube is called
capillary action
How many valence electrons on nitrogen?
5
bond that exists between two different water molecules that are week
hydrogen
Water hangining on to the end of a leaf demonstrates this property
adhesion
a pH of 13 would be a
strong acid
weak acid
weak base
strong base
strong base
water and oil don't mix because water is a __________ molecule and oil is a __________ molecule
polar; non-polar