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Physical Science#1

periodic table

QuestionAnswer
The element found in Group 13 and in Period 2 is: B
Akali metals, alkaline earth metals, and halogens are elements found respectively in Groups 1,2,and 17
Which sequence of atomic numbers represents elements which have similar chemical properties? 4,20,38,88
The elements in the modern Periodic tableare arranged accourding to their atomic number
What is the total number of protons in the nucleus of an F- ion? 9
Which element is a member of the halogen family? I
Which element is a noble gas? Krypton
Which element is considered malleable? Gold
Which substance is the best conducter of electricity? Silver
Moving electons are a distinguishing characteristic of: a metallic bond
Which element is brittle and does not conduct heat or electricty? S
What is the total number of valence electrons in an atom of phosphorus? 5
In which group does each element have a total of four electrons in the outermost princibal energy level? 14(IVA)
What is the total number of valence electrons in an atom with a total of 13 protons? 3
What is the total number of electons in a Mg2+ ion? 10
When a calcium atom loses its valence electrons, the ion formed has an electron configuration which is the same as an atom of Ar
Which is the electron dot symbol for a chlorine atom? .. :CI: ..
Which particle contains the greatest number of electrons? Na
Sodium atoms differ from sodium ions in that sodium atoms contain one more electron
A k+ ion is similar to a CI- ion in that they both have the same number of electrons
What is the total number of electrons in a neutral atom of 19 9F? 9
What is the total charge of an ion that consists of 10 electrons, 11 protons, and 12 neutrons? 1+
Which formula represents a substance that contains covalent bonds? CO2
Which of the following is the best conductor of electricity? salt & water
The water solution of which of the following substances is the best conductor of electricity? KCI
Which element would most likely form an ionic bond with chlorine? K
Which compound contains ionic bonds? Na2O
Which kind of compound generally results when nonmetal atoms chemically combine with metal atoms? ionic
Which substances exists as a metallic crystal? Au
Potassium is classified as a metallic solid
Which substance will conduct electricty in both the sold phase and the liquid phase? Ag
Which type of bond is present in copper wire? metallic
Created by: ashleyrachel
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