S8P1 Lesson

An element is shiny, solid, but brittle.

Which element would that description best describe?

• Na

• Cl

• Te

• Cu

Where are electrons likely to be found on an atom?

• Nucleus

• Electron Clouds

• Neutrons

• Everywhere

Which of the following subatomic particles has the smallest Atomic Mass Unit or AMU?

• Proton

• Neutron

• Electron

• Nucleus

Which elements share similar chemical properties?

• Na + Mg

• Na + K

• O + F

• Na + F

An atom of Nitrogen has 7 protons, 10 electrons, and 7 neutrons.

What is the atomic number (AN) of this atom?

What is the atomic mass (AM) of this atom?

What is the ionic charge (IC) of this atom?

• AN = 7

  AM = 7

  IC = -3

• AN = 7

  AM = 14

  IC = 0

• AN = 7

  AM = 14

  IC = -3

• AN = 7

  AM = 7

  IC = +3

Tags

NGSS.MS-PS1-1

Vertical columns on the Periodic Table are called ____________.

Horizontal rows on the Periodic Table are called ____________.

• Periods

  Groups

• Groups

  Periods

• Columns

  Rows

• Atomic Number

  Ionic Charge

Which of the following elements has a full outer energy level and is in the group identified as the Noble Gases?

• Li

• O

• B

• Ne

Which of the following is a property of Alkali Metals (Group 1)?

• They are so hard they cannot be cut.

• They are very, very reactive.

• They are stored in water.

• They have few uses.

How is the Periodic Table organized?

• Atomic Mass

• Atomic Number

• Alphabetically

• Number of Protons + Number of Netrons

A Beryllium (Be) atom has 4 protons, 5 neutrons, and 4 electrons. What is the Atomic Mass of Be?

• 4

• 5

• 9

• 8