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What is Ions, Cations, and Anions

Describing Nature Through Visual Data
An atom or a molecule that has an electric charge is called an ion. An electric charge results from the presence of single, double, triple, or even higher negative electrons unequal to the number of positive protons in the nucleus of an atom. The removal or addition of one or more electrons changes a neutral atom into an ion. Cation is an ion or group of ions that have a positive charge. Anion is a negatively charged ion. Polyelectrolytes are large molecules with many charged groups. During electrolysis (produced in an electrolyte solution by applying an electric current) cations move toward the cathode (negative electrode) and anions migrate to an anode.
Published in Chapter:
Advances in Describing and Managing Our Environment
Anna Ursyn (University of Northern Colorado, USA)
Copyright: © 2021 |Pages: 57
DOI: 10.4018/978-1-7998-5753-2.ch001
This chapter examines links between the developments in selected technologies and our ways of teaching and learning. The focus is on some domains that are developing especially fast. A postulate follows that including knowledge about developments in science and current tools into the school curricula requires immediate attention. Enhancing the curricula with information about dynamically developing branches of science would likely exert a profound effect on making informed, successful decisions about future careers of students. The following text is about a novel approach to visual way of learning and instruction about processes and products. The visual approach relates to learning about natural processes and the current ways we capture their essence. Learning about advances in science requires application of graphical ways of presentation; the use of internet and digital media by instructors, professionals, and students; and making knowledge visualization an integral part of the learning process.
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