FINAL part 1

Which statement correctly describes the location and charge of the electrons in an atom

• The electrons are inside the nucleus and have no charge.

• The electrons are outside the nucleus and have no charge.

• The electrons are inside the nucleus and have a negative charge.

• The electrons are outside the nucleus and have a negative charge.

A teacher wears protective gloves to lift a metal pan filled with boiling water from a hot plate. Why are the protective gloves necessary?

• The metal pan creates thermal energy
• The metal pan insulates thermal energy
• The metal pan conducts thermal energy
• The metal pan reduces thermal energy

Which liquid is the most dense?  

• oil
• water
• syrup
• plastic bottle

Which of the following is a good conductor of electricity?

• glass rod

• cotton string

• plastic tubing

• copper penny

What type of materials make the best conductors?

• plastic

• metals

• wood

• cork

If something is less dense than water, what will it do?

• sink

• float

• dissolve

Which of the following elements is the most reactive from this row?

• Aluminum

• Sulfur

• Cholrine

• Argon

Which of the following is an example of a physical change?

• Rust forming on a nail left outside

• Your body digesting food

• Hydrogen peroxide forming bubbles when place on an open wound

• A juice box freezing when placed in the freezer

NiCl is a type of yellow salt which can damage the lungs and nasal passage if inhaled. How many total atoms are found in one molecule of NiCl ?

• 1

• 2

• 4

• 3

A simplified version of the Periodic Table of Elements is provided below. In which location on the Periodic Table are the nonmetals found?

• Location 1

• Location 2

• Location 3

• Location 4