Periodic Table Quiz I
Which element is represented by the symbol "H"?
- Hydrogen is the lightest and most abundant chemical element, represented by the symbol "H".
What is the element symbol for oxygen?
- Oxygen is a chemical element with the symbol "O". It is the third most abundant element in the universe by mass.
Which is the heaviest naturally occurring element?
- Uranium, with the atomic number 92, is the heaviest naturally occurring element on Earth. It decays slowly by emitting an alpha particle.
Who is credited with the development of the modern periodic table?
- Dmitri Mendeleev, a Russian chemist, is credited with the formulation of the Periodic Law and the development of the modern periodic table of elements in 1869.
What is the most reactive metal in the periodic table?
- Francium is considered the most reactive metal in the periodic table, but it is rarely used due to its extreme reactivity and scarcity.
Which element is known as the "King of Chemicals"?
- Carbon, often referred to as the "King of Chemicals", plays a fundamental role in life processes. It forms a vast number of compounds, more than any other element, with almost 10 million compounds described to date.
Which element has the highest melting point?
- Tungsten, with the symbol "W", has the highest melting point of all elements discovered, melting at 6,191.6 degrees Fahrenheit.
What is the lightest metal in the periodic table?
- With an atomic weight of 6.94, lithium is the lightest metal in the periodic table.
Who discovered the Electron?
- J.J. Thomson is credited with the discovery of the electron in 1897.
What is the most abundant element in the Earth's crust?
- Oxygen, making up about 46.6% by weight, is the most abundant element in the Earth's crust.
