Atoms
The smallest particle of an element that retains the element's properties.
What is an atom?
This is a one, two, or three letter abbreviation used to represent elements.
What is the chemical symbol?
The pH scale ranges from _____ to _____.
What is 0 to 14?
Anything that takes up space and has mass.
What is matter?
A vertical row on the periodic table.
What is a period?
These are the 3 sub atomic particles that make up an atom.
What are protons, neutrons, and electrons?
Elements like sodium (Na) are metals. Metals tend to ___________ valence electrons creating a sodium ion.
What is lose?
This number is considered neutral on the pH scale.
What is 7?
This phase of matter does not have a definite volume or shape.
What is a gas?
A vertical column on a periodic table represents this.
What is a group or family?
These subatomic particles are found in the nucleus of an atom.
What are protons and neutrons?
This number is listed on the periodic table and shows the number of protons in an atom's nucleus.
What is the atomic number?
What are substances that change colors in the presence of acids and bases.
What are indicators?
These are the 3 states of matter.
What are solids, liquids, and gases?
These bonds are formed when two oppositely charged particles are bonded together because of their opposite electrical charges.
What are ionic bonds?
These are atoms of the same element have the same number of protons, but differing numbers of neutrons in the nucleus.
What is an isotope?
These elements have a full outer valence level so they tend to me non-reactive with other elements.
What are the noble gases?
This is formed when a solution has a large number H+ ions. These substances taste sour and turn litmus paper shades of red.
What is an acid?
This is the fourth state of matter.
What is plasma?
These bonds are formed when atoms share valence electrons with other atoms.
What are covalent bonds?
These electrons are in the outermost energy level of an atom.
What are valence electrons
Magnesium has an atomic number of 12 which means it would have ________ electrons in its outermost valence level.
What substances feel slimy and make good cleaning solutions?
What are bases?
This is the process of a substance transitioning directly from a solid to a gas, bypassing the liquid state, often seen with dry ice.
What is sublimation?
As the periodic table progresses from left to right the elements become ____ metallic. (more or less)
What is less?