Exam (elaborations)
Parts of the Atom Questions and Answers Correct
- Course
- Institution
Exam of 2 pages for the course Atom at Atom (Parts of the Atom)
[Show more]
Content preview
Parts of the AtomAtom - answer the basic particle from which all elements are made; the basic unit of
matter that consists of a dense central nucleus surrounded by a cloud of negatively
charged electrons
Element - answer the simplest form of a pure substance
Nucleus - answer the positively charged dense center of an atom containing neutrons
and protons
Electron - answer the subatomic particle having a negative charge and orbiting the
nucleus
Neutron - answer a subatomic particle forming part of the nucleus of an atom and
having no charge
Proton - answer a positively charged subatomic particle forming part of the nucleus of
an atom and determining the atomic number of an element
Atomic number - answerthe number of protons in the nucleus of an atom
Mass number - answerthe sum of protons and neutrons in the nucleus of an atom
Atomic Mass - answeraverage mass of the protons and neutrons in the nucleus of an
atom
Isotope - answeran atom that contains the same number of protons and electrons but
has additional or fewer neutrons
Ion - answeran atom that has lost or gained one or more electrons
Energy level - answerthe specific amount of energy an electron has; electrons closer to
the nucleus have more energy than the electrons further away from the nucleus
Valence electrons - answerelectrons in the outermost energy level of an atom
Equals atomic number - answerProtons
Equals number of electrons - answerProtons
Equals number of protons + number of neutrons - answerAtomic mass
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 julianah420. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
78252 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now