AQA GCSE Chemistry – Electrolysis Verified Solution
1. What is the systematic organization of elements in the periodic table called?
Answer: The periodic table is a systematic organization of elements, known as the periodic table, due to
its regularly repeating patterns.
2. Who was the sc...
AQA GCSE Chemistry – Electrolysis Verified Solution
1. What is the systematic organization of elements in the periodic table called?
Answer: The periodic table is a systematic organization of elements, known as the periodic table, due to
its regularly repeating patterns.
2. Who was the scientist who proposed one of the first periodic tables?
Answer: John Dalton proposed one of the first periodic tables, organizing elements in order of atomic
weight.
3. Who built upon Dalton's ideas and arranged elements into sets of eight?
Answer: John Newlands built upon Dalton's ideas and arranged elements into sets of eight, noting that
each eighth element had similar properties.
4. Who is credited with proposing the modern periodic table?
Answer: Dmitri Mendeleev proposed the modern periodic table, leaving gaps for undiscovered elements
and receiving acceptance from the scientific community.
5. What determines an element's position on the periodic table?
Answer: An element's atomic number, which is equal to the number of protons in its nucleus,
determines its position on the periodic table.
6. What is a group in the periodic table?
Answer: A group is a column in the periodic table, and its number equals the number of electrons in an
element's outer shell.
, 7. What is a period in the periodic table?
Answer: A period is a row in the periodic table.
8. Which elements are found to the left of the periodic table?
Answer: Metals are found to the left of the periodic table and are electrical conductors.
9. Which elements are found in the top right-hand corner of the periodic table?
Answer: Non-metals are found in the top right-hand corner of the periodic table and are electrical
insulators.
10. What are the noble gases?
Answer: The noble gases are group 0 of the periodic table.
11. Which elements are part of group 1 of the periodic table?
Answer: Alkali metals are part of group 1 of the periodic table.
12. What trends can be observed when moving down group 1 and 7?
Answer: When moving down group 1 and 7, reactivity decreases due to increasing distance from the
nucleus, occupied energy levels, and size of positive charge on the nucleus.
13. Why do transition metals have higher melting points and densities compared to alkali metals?
Answer: Transition metals have higher melting points and densities due to their stronger bonds and
multiple energy levels.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller bestscores1. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.29. You're not tied to anything after your purchase.
