Periodic Table

Match the following to the correct step when drawing a Bohr Model

• 3

• Put the electrons on each level, filling from inside out

• 4

• Determine the number of n⁰ by subtracting mass # - atomic #

• 2

• Use the period number on the periodic table to determine the number of energy levels in the electron cloud

• 1

• Determine the number of p⁺ by the element's atomic #

• 5

• Place the p⁺ & n⁰ in the nucleus

• Group 1
• Group 17
• Group 2
• Group 18

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

• metals

• metalloids

• non-metals

• alkali metals

Groups on the periodic table are arranged...

• vertically

• horizontally

• diagonally

• Metals
• Nonmetals
• Metalloids

• energy levels
• valence electrons
• protons
• neutrons

An element's identity is determined by the number of

• electrons.

• protons.

• neutrons.

• valence.

What property does element X have based on its location in the periodic table?

• Highly reactive gas

• Manmade radioactive substance

• Nonreactive nonmetal

• Metallic solid

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

• energy levels

• valance electrons

• isotopes

• ions

What are the yellow "stair-step" elements?

• metals

• nonmetals

• metalloids