Quiz
Unit 3 - The atom and chemical substances
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Questions in this quiz (10)
1What charge do protons have?
- APositive
- BNegative
2Is H2 a simple substance or an element?
- ASimple substance
- BElement
3Every chemical elements is made up by the same atoms.
- ATrue
- BFalse
4Democritus knew that atoms were divisible and were formed by subatomic particles.
- ATrue
- BFalse
5How is the net charge of the atoms?
- APositive
- BNeutral
- CNegative
6Symbols of the chemical elements:
Hydrogen is [blank_start]H[blank_end] [blank_start]Carbon[blank_end] is C Copper is [blank_start]Cu[blank_end] [blank_start]Nickel[blank_end] is Ni
[blank_start]Calcium[blank_end] is Ca Sodium is [blank_start]Na[blank_end] [blank_start]Aluminium[blank_end] is Al Gold is [blank_start]Au[blank_end]
Iron is [blank_start]Fe[blank_end] [blank_start]Sulfur[blank_end] is S Magnesium is [blank_start]Mg[blank_end] [blank_start]Silver[blank_end] is Ag- AH
- BCalcium
- CFe
- DCarbon
- ENa
- FSulfur
- GCu
- HAluminium
- IMg
- JNickel
- KAu
- LSilver
7Anion is an ion with more electrons than protons
- ATrue
- BFalse
8- Atomic nucleus: its formed by [blank_start]protons[blank_end] and neutrons, and it's in the [blank_start]middle of the atom[blank_end], occupying a very [blank_start]small[blank_end] space relative to the rest of the atom.
- [blank_start]Rest of the atom[blank_end]: also called the shell. [blank_start]Electrons[blank_end] occupy the empty space around each atomic nucleus. Scientists thought electrons [blank_start]orbited[blank_end] the nucleus.- Aprotons
- Belectrons
- Cmiddle of the atom
- Doutside of the atom
- Esmall
- Fbig
- GRest of the atom
- HOut part
- IHelmet
- JElectrons
- KProtons
- LNeutrons
- Morbited
- Nsurrounded
- Ojumped
9The atomic mass number is the sum of the number of neutrons and electrons
- ATrue
- BFalse
10Se+ is...
- AA Selenium Atom (neutral)
- BA Selenium Atom (negative)
- CA Selenium Ion (cation)
- DA Selenium Ion (anion)
- EA Selenium Ion (neutral)
Information
- Description
- Physics and Chemistry: Unit 3 - The atoms and chemical substances.
- Author
- Elena Flores
- Language
- Español
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- 68
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