Unit 2 Review (Bohr Models and Periodic Trends)

Draw the Bohr model for Nitrogen (make sure to include protons neutrons and electrons)

Tags

NGSS.MS-PS1-1

How many valence electrons are in Magnesium?

(a)  

What is a valence electron?

• The electrons in the inner electron shell

• The electrons in the outer electron shell

• Total number of electrons

• Number of electrons compared to protons

Draw the Lewis Dot Structure for Krypton

Tags

NGSS.HS-PS1-2

Which of the following is a metal?

• Sodium

• Fluorine

• Bromine

• Xenon

Which of the following is a non-metal

• Calcium

• Sllicon

• Aluminum

• Oxygen

Which of the following is a metalloid

• Carbon

• Boron

• Lithium

• Neon

A compound has luster, conducts electricity and reacts to HCL. What type of element is it?

• Metal

• Non-Metal

• Metalloid

A compound is dull, brittle and does not conduct electricity. What type of element is it?

• Metal

• Non-Metal

• Metalloid

A compound has luster and conducts electricity, but it does not react with HCL and is hard and brittle. What type of an element is this?

• Metal

• Non-Metal

• Metalloid