When the atom shares an electron with an another atom
The name of FeCl₂ is
Iron (II) chloride
In which mixture can you not see all of the parts?
homogeneous
The weaker the intermolecular forces of a substance the _____________ the boiling point
Lower
When two nonmetals do not share electrons evenly, the resulting covalent bond will be
Polar
Is this a physical or a chemical change? corrosion of a bicycle frame
chemical change
Mention a property of metals
solid, malleable, ductile, high boiling andmelting point
What is an Atom?
The smallest particle or piece of a pure substance.
Is this a physical or a chemical change? freezing point
physical change
Is this a physical or a chemical property? a change of one substance to another
chemical change
According to the octet rule most elements need _______ valence electrons.
8
When metals bond with non-metals they form what type of bonds
Ionic
Identify the element in Period 5 that has 1 valence electron?
Ru
I have an object that is dull, brittle, and an insulator, what is it?
Nonmetal
Is this a physical or a chemical change? sharpening a pencil
physical change
What atom matches this electron configuration? 1s^2 2s^2 2p^6 3s^2
Magnesium
What region of the periodic table contains atoms that form covalent bonds?
the right side
What is the chemical symbol for Titanium
Ti
Are the atoms more stable when they are bonded together or when they are apart?
Bonded Together
Which element is the least reactive? Li, B, C, or Ne
Ne
What is a Compound?
Two or more elements combined; more than one capital letter.
When a nonmetal gains electrons, it becomes this type of ion.
Anion
What is a mixture?
a combination of different things
What two types of atoms make a covalent bond?
2 nonmetals
What atom matches this electron configuration? [Xe] 6s^2 4f^14 5d^9
Gold
What is this element? 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6
krypton
Students in Mrs. Clark's science class are investigating a substance that has the following properties -shiny -bends easily -hard, not easily broken Based on these properties how would you classify the substance?
metal
What element in Period 4 has 5 valence electrons?
As
What is krypton? Element, Compound, Mixture
Element
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