Understanding the Periodic Table Worksheet

Why is the Periodic Table important to me? The periodic table is the most useful ____________________________ It organizes lots of ______________________ about all the known elements.

• tool, information

• book, stories

• chart, animals

• device, experiments

No ____________________________ of elements. Imagine going to a grocery store with no organization!! Difficult to find information. Chemistry didn’t make sense.

• organization

• combination

• separation

• measurement

Dmitri Mendeleev: ________________________ of the Periodic Table Put elements in rows by increasing ______________ Put elements in columns by the way they __________.

• Father, atomic mass, reacted

• Founder, atomic number, bonded

• Creator, atomic weight, combined

• Inventor, atomic size, grouped

Tags

NGSS.HS-PS1-1

The horizontal rows are called ______________ and are labeled from 1 to 7. The vertical columns are called ______________ and are labeled from 1 to 18.

• periods, groups

• groups, periods

• columns, rows

• families, periods

SOME PROBLEMS... Refer to the diagram of the periodic table with labeled 'Periods' and 'Groups'. Which of the following best describes what 'Periods' represent in the periodic table?

• Horizontal rows of elements

• Vertical columns of elements

• Groups of metals only

• Elements with similar reactivity

Identify an element that has 2 energy levels and is located in group 2.

• Magnesium

• Calcium

• Beryllium

• Sodium

Identify the element found in period 4 with 5 valence electrons.

• Arsenic

• Phosphorus

• Selenium

• Krypton

Select the correct electron configuration for the element located in group 14, period 3.

• 1s2 2s2 2p6 3s2 3p2

• 1s2 2s2 2p6 3s2 3p4

• 1s2 2s2 2p6 3s2 3p6

• 1s2 2s2 2p6 3s2 3p1

Tags

NGSS.HS-PS1-1

The element is expected to be more like which of the following: Carbon (C) or Phosphorus (P)?

• Carbon (C)

• Phosphorus (P)

• Oxygen (O)

• Sulfur (S)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

List one property in the box: Properties of Metals.

• Metals are malleable and ductile.

• Metals are always liquid at room temperature.

• Metals are poor conductors of electricity.

• Metals are brittle and break easily.