Welcome to Chemistry Crossword Puzzle

QUESTIONS LIST:

• hydrogen : the lightest element
• positive : the charge on an atom's nucleus
• negative : the charge on an electron
• neutron : the name of the neutrally charged particle which is part of an atom's nucleus
• silver : the best conductor of electricity
• supernova : the event that creates the heavy metals (e.g, gold, zinc, nickel, etc.)
• substances : chemistry is the study of _ .
• uranium : the first atomic bomb used an isotope of this element
• plutonium : the second atomic bomb used an isotope of this element
• water : another name for h2o
• phase : when a substance changes from a solid to a liquid, that is known as a change of _ .
• inert : helium, neon, and argon are examples of these gases
• electrolytes : salts (e.g, sodium, calcium) dissolved in water and found in the human body are known as _ .
• boiling : the point at which a liquid will change into a gas
• iron : by mass, the most common element on earth
• equals : in any element, the number of protons _ the number of electrons
• triple : the point at which the solid, liquid, and vapor phases of a pure substance can coexist in equilibrium
• bohr : the model of the atom which includes electrons orbiting the nucleus of the atom