Atoms
This subatomic particle has a negative charge
What is an electron?
This element is liquid at room temperature and used in thermometers
What is mercury?
The main gas in Earth’s atmosphere
What is nitrogen?
This chemist arranged elements by atomic mass and left blanks for yet-to-be-discovered ones
Who is Mendeleev?
Photosynthesis converts carbon dioxide and water into glucose and this byproduct
What is oxygen
This is the amount of protons carbon has
What is 6?
Elements in this group are all gases at room temperature and extremely unreactive
What are noble gases?
The bubbles in soda are made of this gas
What is carbon dioxide?
The accidental discovery of penicillin is credited to ____
Who is Alexander Fleming?
When a hydrocarbon reacts with oxygen to produce carbon dioxide and water, this type of reaction occurs
What is combustion?
The number of protons in an atom is also called its ____
What is atomic number?
This element has the highest electronegativity.
What is fluorine?
This mineral keeps bones strong and is found in milk, cheese, and leafy greens
What is calcium?
This French scientist is often called the “father of modern chemistry” for proving that mass is conserved in reactions
Who is Antoine Lavoisier?
The reaction of an acid with a base to form water and a salt is called this
What is neutralization?
This model described electrons moving in orbits around a nucleus like planets
What is Bohr’s model?
This element, named after a country, is not mainly produced in this country
What is germanium?
The acid in citrus fruits
What is citric acid?
This ancient Greek thinker first suggested that matter is made of tiny, indivisible particles called “atomos”
Who is Democritus?
This “browning” reaction occurs when proteins and sugars react under heat, giving toast, seared meat, and roasted coffee their flavor
What is the Maillard reaction?
The rule saying “no two electrons in the same orbital can have the same spin"
What is the Pauli exclusion principle?
This element, named after a planet, was the first artificially produced element
What is neptunium?
Stainless steel owes its corrosion resistance to a few percent of this element, which forms an ultrathin, self-healing oxide layer on the surface
What is chromium?
Marie Curie discovered radium and this other element
What is polonium?
A magical paste that never brushes, yet swells and tumbles like a dormant mountain stirred awake. It froths with a giant’s whim, vanishing before the eye can follow, leaving only foam and wonder in its wake
What is elephant toothpaste?