alkaline-earth metal

[ al-kuh-lahyn-urth, -lin- ]

/ ˈæl kəˌlaɪnˈɜrθ, -lɪn- /

Save This Word!

noun Chemistry.

any of the group of bivalent metals including barium, radium, strontium, calcium, and, usually, magnesium, the hydroxides of which are alkalis but less soluble than those of the alkali metals.

QUIZ

CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?

There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Do you know how to answer the questions that cause some of the greatest grammar debates?

Question 1 of 7

Which sentence is correct?

His boss, whom he admires, is waiting to meet with him about the big project.

His boss, who he admires, is waiting to meet with him about the big project.

TAKE THE QUIZ TO FIND OUT

Origin of alkaline-earth metal

First recorded in 1900–05

Words nearby alkaline-earth metal

alkali metaprotein, alkalimeter, alkalimetry, alkaline, alkaline earth, alkaline-earth metal, alkaline phosphatase, alkaline soil, alkalinity, alkali rock, alkali soil

Scientific definitions for alkaline-earth metal

alkaline-earth metal

Any of a group of metallic elements that includes beryllium, magnesium, calcium, strontium, barium, and radium. Because the alkaline-earth metals have two electrons in their outer shell, they react easily with other elements and are found in nature only in compounds. See Periodic Table.