Physical Science Review
Terms in this set (38)
Which of the following groups contain three elements with stable electron configurations?
D. Helium, xenon, neon
Typically, atoms gain or lose electrons to achieve...
C. A stable electron configuration
In an electron dot diagram, the symbol for an element is used to represent...
D. The nucleus and the non-valence electrons.
Study the electron dot diagrams for Lithium, carbon, fluorine, and neon in Figure 6-1. Choose the statement that correctly identifies the most stable of the elements.
D. Neon is the most stable element because its highest occupied energy level is filled.
Ionization energies tend to...
C. Increase from left to right across a period.
The formation of an ionic bond involves the...
A. Transfer of electrons.
Which of he following statements correctly describes the substance with the formula KI?
B. There is a one-to-one ratio of potassium ions and iodide ions.
Because water molecules are polar and carbon dioxide molecules are nonpolar...
D. Water has a higher boiling point than carbon dioxide does.
The elements most likely to form more than one type of ion are the...
A. Transition metals
Fluorine, F, forms a binary ionic compound with Lithium, Li. What is the name of this compound.
B. Lithium fluoride
The name copper(II) indicates that a compound contains...
B. Copper ions with a 2+ charge
Which of the following statements about ions is true?
B. Many transition metals can form more than one type of ion.
Beryllium, Be, and chlorine, Cl, form a binary ionic compound with a one-to-one ratio of beryllium ions to chloride ions. The formula for the compound is...
In the name carbon dioxide, the prefix of the second word indicates that a molecule of carbon dioxide contains...
B. Two oxygen atoms
Which phrase best describes a metallic bond?
D. There is an attraction between positively charged and negatively charged particles
Many metals can be drawn into thin wires without breaking because...
A. Cations are still surrounded by electrons when they shift their positions in the lattice.
Which statement about metals is true?
C. Electrons in a metal lattice are free to move.
An alloy that contains mainly copper and tin is...
How does increasing the amount of carbon in steel affect its properties?
A. Carbon makes the lattice harder and stronger.
In an electron dot diagram each dot represents a (an)
In an ionic compound, the attractions between cations and______ hold the compound together.
In the binary ionic compound, potassium bromide, KBr, the element that forms cations is______.
The chemical formula for calcium chloride, CaCl2, shows that the compound contains two _______ ions for every ________ ion.
KBr is the formula for an ionic compound. The fact that neither symbol is followed by a subscript means that there is a(an) ______ ration of ions in the compound.
You are given the melting point of three unknown substances and asked to predict which is an ionic compound. You would select the compound with the _______ melting point.
The ions in solid sodium chloride are arranged in a structure called a(an)______ lattice.
If there are two long dashes between two atoms in a structural formula, molecules of the compound contain a(an)_______ bond.
A polar covalent forms when _______ are not shared equally between atoms.
Two factors that determine whether a molecule is polar are the types of atoms in the _____ of the molecule.
When cesium and fluorine react, they form an ionic compound called cesium_______.
A (An) _________ ion is a covalently bonded group of atoms that has a positive or negative charge.
In ionic compounds whose formula is SO3 is called sulfur ___________.
The metallic bonds in a transition metal, such as tungsten, are stronger than the metallic bonds in a (an) ________ metal, such as sodium.
In general, the more ___________ a metal has, the stronger its metallic bonds will be.
Among the elements potassium, lithium, and iron, the metallic bonds are likely to be strongest in ________.
In a metal lattice, ______ are surrounded by a pool of shared electrons.
In its simplest form, the alloy brass consists of zinc and _____.
To produce stainless steel, _________ is added to iron.
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