Periodic Table

Which classification of elements are gases or dull brittle solids and poor conductors?

• Transition metals

• Metals

• Nonmetals

• Metalloids

The chemical properties of an element are determined by the number of

• energy levels

• valance electrons

• isotopes

• ions

• Metals
• Nonmetals
• Metalloids

Groups on the periodic table are arranged...

• vertically

• horizontally

• diagonally

Which of the following is not a property of metalloids?

• poor conductors of electricity

• have properties of metals & non-metals

• solids at room temperature

Periods on the periodic table are __________.

• Horizontal Rows

• Vertical Columns

All elements in the same group have the same number of valence electrons

• Yes

• No

Which of the following are located along a dividing line that looks like a staircase?

• metals

• metalloids

• non-metals

• alkali metals

What are the vertical columns on the periodic table called?

• Groups

• Periods

• Elements

• Valence electrons

Every element has an unique number of _______________.

• protons

• neutrons

• electrons

• symbols