2.4 Practice

Front

Horizontal rows on the periodic table are called?

Back

Periods

Front

Which class of elements are malleable, ductile, shiny when clean and polished, good conductors of heat and electricity, and reacts with acids to form hydrogen gas?

Back

Metals

Front

Which element is found in group 2, period 6?

Back

Barium (Ba)

Front

What is an atom or bonded group of atoms that has a positive or negative charge?

Back

Ion

Front

The periodic table is mostly comprised of what type of element?

Back

Metals

Front

What are the vertical columns on the periodic table called?

Back

Groups

Front

What is the smallest unit of an element that retains the properties of that element?

Back

Atom

Front

What is the term for elements that have properties of both metals and nonmetals?

Back

Metalloids

Front

What is the charge of an electron?

Back

Negative

Front

What is the charge of a proton?

Back

Positive