Electrons

Electrons are subatomic particles that orbit the nucleus of an atom. They have a negative charge and are incredibly small in size. The movement and arrangement of electrons determine the chemical properties of an element.

Structure of an Atom

Atoms consist of protons, neutrons, and electrons. Protons and neutrons form the nucleus at the center of the atom, while electrons move around the nucleus in specific energy levels or shells.

Behavior of Electrons

Electrons are involved in chemical bonding, allowing atoms to combine and form molecules. They can also move between different atoms, leading to the flow of electricity in conductive materials.

Study Guide

What is the charge of an electron?
Describe the location of electrons within an atom.
How do electrons contribute to chemical bonding?
Explain the role of electrons in the conduction of electricity.

◂Science Worksheets and Study Guides Second Grade. What is science?

Vocabulary/Answer key

What is science?

The resources above cover the following skills:

LIFE SCIENCE

Ecosystems: Interactions, Energy, and Dynamics

Obtain information from literature and other media to illustrate that there are many different kinds of living things and that they exist in different places on land and in water (e.g., woodland, tundra, desert, rainforest, ocean, river).

EARTH AND SPACE SCIENCE

Earth’s Systems

Make observations from media to obtain information about Earth’s events that happen over a short period of time (e.g., tornados, volcanic explosions, earthquakes) or over a time period longer than one can observe (e.g., erosion of rocks, melting of glaciers).

Collect and evaluate data to identify water found on Earth and determine whether it is a solid or a liquid (e.g., glaciers as solid forms of water; oceans, lakes, rivers, streams as liquid forms of water).