The Periodic Table
Grade 7 · Science · Chemistry of Life · Nebraska, USA
Lesson Summary
Navigate the periodic table to find information about elements and their properties.
Explanation
The periodic table organizes all known elements by their atomic number (number of protons). Elements in the same column (group) share similar properties—for example, Group 1 elements are reactive metals. Elements in the same row (period) have the same number of electron shells. The table is divided into metals (left side), nonmetals (right side), and metalloids (along the staircase line). Each element's box shows its symbol, atomic number, and atomic mass.
Practice Questions
Q1: What information can you find in a single element's box on the periodic table?
Answer: The element's symbol, atomic number (number of protons), name, and atomic mass.
Q2: Why are elements in the same group (column) considered a family?
Answer: They share similar chemical properties because they have the same number of electrons in their outer shell.
Q3: Is the element with atomic number 6 a metal, nonmetal, or metalloid?
Answer: Atomic number 6 is carbon, which is a nonmetal.
People Also Ask
What is The Periodic Table in Grade 7 Science?+
The Periodic Table is a lesson in the Chemistry of Life chapter of Grade 7 Science. It is part of the Nebraska, USA school curriculum and covers key concepts that students need to understand at this level.
What grade level covers The Periodic Table?+
The Periodic Table is taught in Grade 7 as part of the Science curriculum in Nebraska, USA.
How can I help my child with Chemistry of Life in Science?+
Start with the lesson summary and explanation on this page. Practice the questions provided, then use TutorTom for personalized, step-by-step help with Chemistry of Life topics.