Quiz
Chemistry
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Perguntas do quiz (7)
1What is a atom?
- AAre the smallest particles of matter, that we cannot break down further by chemical means
- BAre the biggest particles of matter, that we can break down further by chemical means
- CAre the biggest particles of matter, that we cannot break down further by chemical means
- DAre the smallest particles of matter, that we can break down further by chemical means
2A element contains 2 or more kinds of atoms
- AVerdadeiro
- BFalso
3What are the symbols of these elements:
Lithium, Sodium, Carbon, Nitrogen, Oxygen, Helium, Gold, Silver, Copper- ALi, Na, C, N, O, He, Au, Ag, Cu
- BLi, So, C, Ni, O, He, G, S, Co
- CLi, Na, C, N,O, H, Au, S, Cu
4Atoms consist of a nucleus and a cloud of [blank_start]electrons[blank_end] that move around the nucleus. The nucleus is itself a cluster of two kinds of particles, [blank_start]protons[blank_end] and [blank_start]neutrons[blank_end].
All particles in an atom are very light. So their mass is measured in [blank_start]atomic mass[blank_end] units, rather than [blank_start]grams[blank_end]. Protons and electrons also have an [blank_start]electric charge[blank_end].
You can identify an atom by the number of protons it has.
The number of protons in the [blank_start]nucleus[blank_end] of an atom is called its protom number (or [blank_start]atomic number[blank_end]).
Every [blank_start]atom[blank_end] has an equal number of protons and electrons. Si atoms have no [blank_start]overall charge[blank_end].- Aelectrons
- Bprotons
- Cneutrons
- Datomic mass
- Egrams
- Felectric charge
- Gatomic number
- Hoverall charge
- Iatom
- Jnucleus
5Diffusion - The particles mix and spread by colliding with other moving particles, and boucing off in all directions.
- AVerdadeiro
- BFalso
6What is an ion?
- AThe particles are atoms or groups of atoms that carry a charge.
- BThe particls are atoms or groups of atoms that does not carry a charge
7The partivles in a solid are arrranged in a fixed pattern or lattice
- AVerdadeiro
- BFalso
Informações
- Descrição
- Quick tests about Elements and Atoms: True and False Multiple choice
- Autor
- cayetanalian2002
- Idioma
- Español
- Visualizações
- 23
- Histórico
- Criado em 15 nov 2015 · atualizado em 10 set 2016
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