Topic 1 - Exploring Matter
Tiny particles all matter is made of.
What is an atom?
This type of change brings about a changes in chemical composition.
What is chemical change?
These are the three different subatomic particles.
What are electrons, protons, and neutrons?
A Russian chemist responsible for the periodic table of the elements.
Who was Mendeleev? (bonus points for first name, Dmitri.)
This element is the first element on the periodic table of elements.
What is hydrogen?
Atoms that have been combined.
What are molecules?
What are physical properties? (NOT physical changes)
The number of protons in an element is represented by this.
What is the atomic number?
These are the electrons on the outermost orbital of an element.
What are valence electrons?
An ion that gains electrons and becomes negatively charged.
What is an anion? (you must say anion, not just ion)
This state of matter has the highest amount of energy.
What are gases?
These properties can be defined by a precise measurement.
What are quantitative properties?
This is an example of a previous atomic model, where the atom was pictured as a miniature solar system.
What is Bohr's Atomic Model?
This chemical family of elements is highly reactive, shiny, silvery, and soft.
What are alkali metals?
This is the name for the phase change from solid to gas.
What is sublimation?
What are mixtures?
This law says in simple terms, mass cannot be created or destroyed.
What is the Law of Conservation of Mass?
C, Na, Fe, are all examples of this.
What are element symbols?
This chemical family is odorless, colorless, and are non-reactive gases.
What are noble gases?
This is the proposed explanation of why something occurs.
What is a theory?
This is a mixture made of large particles that will settle if left undisturbed.
What is a suspension mixture? (or just suspension)
Blending fruit in a blender is an example of this type of change.
What is an example of physical change?
(or what is physical change?)
These are used to summarize an observations that occurs each and every time.
What is a law?
This element has the atomic number 50 and the symbol Sn.
What is tin?
What is Rutherford's "Planetary" Model?