A unit of matter composed of two or more atoms held together by chemical bonds

Which group of elements contains the most reactive metals? iron triad transition metals alkali metals alkaline earth metals

How many moles of 0^2 are in 53 Liters of 0^2?

What is the oxidation number of sulfur in CaSO3 (3 is a subscript) ?

Explain how the size and shape of particles affect the attraction between them.

Electronegativity values decrease as you move across a period from left to right. True False

Which statement about Clinton s impeachment is true? A. Clinton s impeachment was supported by the majority of Americans. B. The impeachment charges were based on fraud found during the Whitewater investigation. C.

When the equation ZnS+O ZnO+SO isbalanced the coefficientof O is 1, 5, 3, or2

Radioactive elements decay at a know rate known as half-life. Choose all of the correct statements concerning half-life. Carbon-14 has a half-life of 5,730 years. A 30 gram sample will be 10 grams after 5,730 years.

I am the most reactive metal in Period 4.

Titanium is a transition metal used in many alloys because it is extremely strong and lightweight. titanium tetrachloride (ticl4) is extracted from titanium oxide using chlorine and coke (carbon). if you begin with 1.