Quiz
Elements Compounds and Mixtures Quiz
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Perguntas do quiz (20)
1What are atoms?
- AAtoms are heavy solid balls.
- BAtoms are tiny visible particles.
- CAtoms are the building blocks of every substance in the world.
- DAtoms are Lego blocks.
2Which of the following are metallic?
- AIron
- BSilicon
- CCobalt
- DCalcium
- EPhosophorus
- FSulfur
- GSilver
- HUranium
- IKrypton
3Which of these properties best describes the non-metallic elements?
- ADull
- BMalleable
- CBrittle
- DConduct heat
- EDuctile
- FDoesn't conduct electricity
4Elements are made up of just one type of atom.However, the atoms in elements can be arranged in different ways, these ways are :
-[blank_start]Monatomic[blank_end]
-[blank_start]Molecules[blank_end]
-[blank_start]Lattices[blank_end]
- AMonatomic
- BMolecules
- CLattices
5What are the 6 monatomic elements?
- AHelium,Nitrogen,Carbon,Oxygen,Hydrogen,Phosphorus
- BXenon,Radon,Neon,Argon,Helium,Krypton
- CSulfur,Oxygen,helium,hydrogen,neon,Argon
- DXenon,Radon,Neon,Argon,Helium,hydrogen
6In metal lattices,the atoms are only [blank_start]weakly joined[blank_end] to each other.As a result, metals can be bent and drawn into [blank_start]wires[blank_end].
-
In [blank_start]non-metallic[blank_end] lattices, the atoms are [blank_start]strongly bonded[blank_end] to each other. This makes them hard and [blank_start]brittle[blank_end].
- Aweakly joined
- Bwires
- Cnon-metallic
- Dstrongly bonded
- Ebrittle
7Wha are the 6 elements that make up your body?
- ACarbon
- BHelium
- CIodine
- DHydrogen
- ENitrogen
- FPhosphorus
- GCalcium
- HOxygen
8What is the chemical formula for glucose molecule?
<--------------------------
<--------------------------
<--------------------------
- AH12,O6,C6
- BO6,C6,H12
- CC6,H12,O6
- DC6,O6,H12
9[blank_start]Alloys[blank_end] are a [blank_start]mixture[blank_end] of a metal with other metals or non-metals.Alloys are particularly important because they often have very [blank_start]different[blank_end] and [blank_start]useful[blank_end] properties compared to [blank_start]pure metal[blank_end]. For example:-
-[blank_start]Stainless steel[blank_end] for tools and cutlery
-[blank_start]Brass[blank_end] for doorknobs
-[blank_start]Sterling silver[blank_end] for jewellery.
- AAlloys
- Bmixture
- Cdifferent
- Duseful
- Epure metal
- FStainless steel
- GBrass
- HSterling silver
10Scientists proposed that matter was composed of atoms well after STMs were invented.
- AVerdadeiro
- BFalso
11John Dalton is considered to be the second person to propose the fundemental ideas behind the modern atomic theory of matter.
- AVerdadeiro
- BFalso
12A scientific model is a/an ___________ idea that can be used to help make predictions or test assumptions.
____________=
- AExpanded
- BEasier
- COld
- DSimplified
13All matter is composed of indivisible particles called atoms.
- AVerdadeiro
- BFalso
14Although there are countless types of [blank_start]matter[blank_end], there are only [blank_start]117[blank_end] known types of atoms.Each atom has a unique set of [blank_start]properties[blank_end]. These properties can be:-
-[blank_start]Physical properties[blank_end]
-[blank_start]Chemical properties[blank_end]
- Amatter
- B117
- Cproperties
- DPhysical properties
- EChemical properties
15Label the following atom with the correct names
- AElectron
- BProton
- CNeutron
16Which of these are the subatomic particles?
- ANucleus,neon,argon
- Belectron,proton,neutron
- Cneutron,proton,nucleus
- DNeutron,neon,proton
17Why is it that the electrons in atom don't fly off?
- AThis is science, i dont know!!!
- BBecause they are negatively charged
- CBecause protons are positively charged and electrons are negatively charge, they attract each other like the opposite poles of the magnet.
- DThe electron always has a "-", or negative, charge. The proton always has a "+", or positive, charge. If the charge of an entire atom is "0", or neutral, there are equal numbers of positive and negative charges. Neutral atoms have equal numbers of electrons and protons. The third particle is the neutron. It has a neutral charge, also known as a charge of zero.
18Answer the folowing table about the properties of subatomic particles.
- AIn the Nucleus
- BIn the Nucleus
- CIn the Electron cloud
- Dx1800
- Ex1800
- Fx1
- G+1
- H0
- I-1
19A lithium atom has the atomic symbol <------------------------------------
<------------------------
Identify the:-
-Atomic number= [blank_start]3[blank_end]
-Mass number= [blank_start]7[blank_end]
-Number of Protons= [blank_start]3[blank_end]
-Number of Neutrons= [blank_start]4[blank_end]
-Number of Electrons= [blank_start]3[blank_end]
- A3
- B7
- C3
- D4
- E3
20Label the following Diagram
- AUp to 2 electrons
- BUp to 8 Electrons
- CUp to 18 Electrons
Informações
- Descrição
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- Autor
- Ahmed Almohammed
- Idioma
- English
- Visualizações
- 115
- Etiquetas
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