Flashcards
Chemistry
Cards in this deck (8)
- 1What is the relative mass and relative charge of a proton, neutron and electron?Relative mass Relative charge
Proton 1 +1
Neutron 1 0
Electron 1/2000 -1 - 2What is an isotope?Isotopes are atoms with the same number of protons but different numbers of neutrons. This gives them different masses.
- 3Why do isotopes of an element have the same chemical properties?Because they have the same electron configuration and electrons are involved in chemical reactions.
- 4When are ions formed?Ions are formed when atoms gain or lose electrons.
- 5How do you calculate relative atomic mass?Add together (Mass number x Percentage/100)
- 6What is an orbital?A region that can hold up to two electrons with opposite spins.
- 7Shape of an S-orbital?Spherical.
- 8How many electrons can an S, P and D orbital hold?S- 2 electrons
P- 6 electrons
D- 10 electrons
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- Basics of Chemistry that will be in all three exams.
- Created by
- nimo mohamud
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