Periodic Table

The outermost electrons are called--

• valence electrons
• cloud electrons
• bohr level electrons
• last level electrons

Which statement is true about all nonmetals except hydrogen?

• All have 7 valence electrons
• All are to the right of the stair-step line
• All are to the left of the stair-step line
• All are solids at room temperature

The element in period 3 and family 13 is classified as---

• a metal
• a metalloid
• a nonmetal
• a liquid

The element in period 4 and family 15 is classified as ---

• a metalloid
• a metal
• a nonmetal
• a liquid

An element is in period 2 and family 16. How many valence electrons does the element have?

• 2
• 6
• 16
• 14

Which of the following elements is classified as a halogen and period 2?

• Aluminum
• Flourine
• Beryllium
• Neon

Horizontal rows are called ---

• periods
• families
• groups
• valence electrons

The atomic number is equivalent to ---

• protons and neutrons
• protons and electrons
• electrons and neutrons
• atomic mass and protons

An element is in period 3 and family 1. How many energy levels would the Bohr model have?

• 3
• 1
• 11
• 4

What is the maximum number of electrons that the second energy level of a Bohr model can hold?

• 2
• 6
• 8
• 10