Fichas
Charges of the nucleus, atom, ions and more
Fichas del conjunto (11)
- 1What is meant by the term "positron"?It refers to the nucleus and its having a positive charge
- 2Why does the nucleus have an overall positive charge?Since protons have a positive charge and neutrons have no charge whatsoever.
- 3What is the overall charge of an atom?neutral; the positive charges of the protons cancel out the negative charges of the electrons
- 4What are ions?Positively/negatively charged substances which are no longer atoms because they are not neutral.
They can be of multiple 2+, 3+, 4-, 2-, etc., or a single charge, 1+/1-. - 5What is the difference between cations and anions?cations - positively charged ions
anions - negatively charged ions - 6What is electrolysis?The process (-sis) of electricity (electro-) breaking up (-ly-) ionic compounds by giving or taking away electrons from each ion.
- 7In electrolysis, what are the two electrodes?The cathode and the anode
- 8What charges are the two electrodes in electrolysis?Cathode - negative
Anode - positive - 9Where will cations and anions each go to during electrolysis?Cations - to the cathode
Anions - to the anode - 10Why does each ion go to the electrode of converse (opposite) charge during electrolysis?Because:
- opposite charges attract
- the electrons must be transferred from the negative charge to the positive charge to make both the ions and the electrodes neutral - 11—
Información
- Descripción
- These flashcards cover the charges of the nucleus, atom, ions and much more. There are even links to other topics, such as electrolysis. This can be useful for both Chemistry and Physics at any level, but have been created by a GCSE student.
- Creado por
- Tarantino Hajdari
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