Periodic Table

The lanthanoid and actinoid series together compose what grouping on the periodic table

What chemist arranged the elements according to increasing atomic mass. Discovered the law of octaves.

fluorine, chlorine, bromine, iodine and astatine

What is the only metal that is a liquid at room temperature?

A sample of an unidentified element has a silver luster, conducts electricity well, and is highly reactive. It is a ____

None of the noble gases form compounds with other elements

High electronegativities are associated with large ionization energies and high electron affinities

Generally, atomic radii increase when moving down a group or column in the periodic table

Calcium is in the lower-left section of the periodic table, and chlorine is in the upper right. Which is smaller?

good conductors of heat and electricity; usually hard, lustrous, malleable and ductile

What is the large group of elements that have their highest energy electrons in the interior d sublevels

Whose work resulted in the revision of the periodic law and the atomic number being used to organize the periodic table

Graphite and diamond are both composed of the element carbon

generally gases or soft solids

A larger atomic radius means a _________ ionization energy; a smaller atomic radius means a _______ ionization energy.

Which of the following is the lightest and most abundant element in the universe and is extremely flammable in the air.

Aluminum has all the following properties except

Existing as a diatomic or triatomic gas, this element accounts for 21% of earths atmosphere and is essential for life

Which property measures the attraction of bonded atoms to electrons

Elements which are mostly geological minerals that are dissolved slightly in water are called

Which of the following would NOT be a physical or chemical property of chromium?

Semiconductors can also be called ___________

Oxygen has the ability to combine with other elements to form compounds called ___________

Which property measures the energy required to remove an outermost electron?

The periodic trend for first ionization energy is the opposite of atomic radii

Who was credited with developing the first ordered table of elements

Nitrogen, phosphorus, arsenic, antimony, bismuth, and moscovium are all in group 15, also known as the __________

Why do elements in the same group have similar physical and chemical properties?

having characteristics of both metals and nonmetals

helium, neon, argon, krypton, xenon and radon

Atomic radius is defined as the distance from the center of the atom's nucleus to _____________