Flashcards
Lecture 2 - The Atom
Flashcards do conjunto (14)
- 1What is an atom?The smallest unit of matter that retains the property of an element
- 2Draw an label an atom
- 3What are the relative masses and charges of the subatomic particles
- 4Label A and ZA - mass number (protons + neutrons)
Z - atomic number (protons)
- 5Calculate the number of subatomic particles
- 6What is an ionAn ion is an atom (or molecule) in which the total number of electrons is not equal to the total number of protons, giving the atom (or molecule) a net positive or negative electrical charge.
- 7What is a cation?a positive ion
- 8What is an aniona negative ion
- 9What are isotopes?Isotopes are atoms with the same number of protons (same element) but different number of neutrons.
- 10What is the atomic mass scale?When masses are compared with the mass of an atom of the carbon-12 isotope
- 11What is the relative atomic mass?is the average mass of one atom of that element relative to 1/12th of the mass of a carbon-12 atom.
- 12Calculate the Ar of Carbon12.01
- 13Label
- 14Calculate Ar
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- Descrição
- Chemistry Matters (Lecture 2 - Inside the Atom) FlashCards sobre Lecture 2 - The Atom, criado por Bisola Soyombo em 10-10-2017.
- Criado por
- Bisola Soyombo
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