NSC exam vocabulary questions with correct answers
4 views 0 purchase
Course
NSC
Institution
NSC
NSC exam vocabulary questions with correct answers
element - Answer-pure substance on the periodic table
atom - Answer-smallest particle of an element that still has all of the properties of that element
molecule - Answer-two or more atoms chemically bonded together, such as H2O. atoms of ...
nsc exam vocabulary questions with correct answers
valid answer producing the desired results effe
theory answer a broad substained explanation of
fact answer best information we have at present
Written for
NSC
All documents for this subject (683)
Seller
Follow
Rusenna
Reviews received
Content preview
NSC exam vocabulary questions with
correct answers
valid - Answer-producing the desired results; effective
theory - Answer-a broad substained explanation of some aspect of the natural world.
Not a guess, or simply a hypothesis
fact - Answer-best information we have at present time. are constantly changing as
discoveries are being made
science - Answer-an organized way of answering questions about the universe. is a
process, not just a collection of facts
element - Answer-pure substance on the periodic table
atom - Answer-smallest particle of an element that still has all of the properties of that
element
molecule - Answer-two or more atoms chemically bonded together, such as H2O. atoms
of the same element bond together sharing or exchanging of electrons molecules form.
atomic number - Answer-the number of protons in an atom
mass number - Answer-the number of protons plus the number of neutrons in an atom
Isotopes - Answer-atoms of the same element that contain different numbers of
neutrons. has extra neutrons.
neutrons - Answer-they are found in the nucleus of an atom. protons and neutrons stick
together in the nucleus. no charge
electrons - Answer-they are extremely light weight and exist in a cloud orbiting the
nucleus. negative charge
protons - Answer-found in the nucleus. have a positive charge
what conclusions about the structure of atoms arose from the rutheford experiment? -
Answer-conclusion- atoms are mostly empty space with small dense central
core=nucleus
how does the scanning tunneling microscope work, and what uses do they have? -
Answer-allow us to see the surface features of some atoms and molecules, metal
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 Rusenna. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
