Test
Periodic Table Exam
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Preguntas del test (19)
1was an ancient Greek philosopher known for his influence on modern science, believed that atoms were indivisible and indestructible
- AMendeleev
- BDalton
- CDemocritus
- DRutherford
2
unreactive in chemical reactions due to their full valence- Ahalogens
- Balkali metals
- Cnoble gases
- Dsolids
3the weighted average of the mass of the atoms in a naturally occurring sample of the element
- Aatomic number
- Batomic mass
- Catomic size
- Delectronegativity
4the number of protons in the nucleus of an atom of that element
- Aatomic mass
- Batomic number
- Cmass number
5unreactive in chemical reactions due to their full valence
- Ahalogens
- Balkali metals
- Cnoble gases
- Dsolids
6a chemist who used the noble gases to explain why atoms form certain kinds of ions and molecules
- AMendeleev
- BDalton
- CRutherford
- DGilbert Lewis
717. groups 1A, 2A, and 3A--metals
- ALose electrons
- Bgrow electrons
- Cmake electrons
- Dgain electrons
8groups 5A, 6A, and 7A--nonmetals
- ALose electrons
- Bgrow electrons
- Cmake electrons
- Dgain electrons
9tiny central core of an atom composed of protons and neutrons
- Anucleus
- Bneutron
- Corbitals
- Denergy level
10subatomic particles with no charge
- Aprotons
- Bneutrons
- Celectrons
11subatomic particles with positive charge
- Aprotons
- Bneutrons
- Celectrons
12subatomic particles with negative charge
- Aprotons
- Bneutrons
- Celectrons
13The mass in an atom comes from both the [blank_start]protons[blank_end] and the [blank_start]neutrons[blank_end]. Each particle is the equivalent of [blank_start]one[blank_end] a.m.u. The electrons have almost [blank_start]zero[blank_end] mass.
- Aprotons
- Bneutrons
- Czero
- Done
14If you have the mass number and the atomic number, you need to subtract the [blank_start]atomic number[blank_end], which represents the number of [blank_start]protons[blank_end], from the mass number to get the correct number of [blank_start]neutrons[blank_end].
- Aatomic number
- Bprotons
- Cneutrons
15 If you have the mass number and the number of neutrons, you need to subtract the number of [blank_start]neutrons[blank_end] from the [blank_start]mass number[blank_end] to get the correct number of [blank_start]protons[blank_end].
- Aneutrons
- Bmass number
- Cprotons
16Valence electrons are the electrons in the highest occupied energy level of an element's atoms, determines the properties of an element
- AVerdadero
- BFalso
17isotopes are positively charged subatomic particles
- AVerdadero
- BFalso
18a cation is an ion with a negative charge
- AVerdadero
- BFalso
19[blank_start]Ions[blank_end] are atoms that have an unequal number of protons and [blank_start]electrons[blank_end]. If they are atoms that have lost electrons they are [blank_start]positive[blank_end] and are called [blank_start]cation[blank_end]s. If they are atoms that have gained electrons, they are [blank_start]negative[blank_end] and are called [blank_start]anions[blank_end].
- AIons
- Belectrons
- Cpositive
- Dcation
- Enegative
- Fanions
Información
- Descripción
- 9th grade Chemistry Test sobre Periodic Table Exam, creado por Maureen Fonken el 13/02/2017.
- Autor
- Maureen Fonken
- Idioma
- English
- Visitas
- 88
- Historial
- Creado el 13 feb 2017 · actualizado el 13 feb 2017
- Etiquetas
- Valoración
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