The Periodic Table
What are the vertical columns called?
Groups
What is an ion?
A Charged Atom
Which of the following could have covalent bonding?
Molecules of a non-metal
A chemical bond formation that involves the complete transfer of electrons between atoms is _______
ionic bond
Which of the following statements is not correct regarding ionic compounds?
They are good conductors at room temperature
What are the rows called?
Periods
Why are ions formed?
atoms want 8 valence electrons
What is a single covalent bond?
One pair of shared electrons
Ionic bonds easily form when electrons when the ionization energy of the metallic atom is _____ comparatively.
less
Ionic compounds are generally exist as ___________at room temperature.
solid
The "Periodic Table" we use today has the elements arranged according to their _______
Increasing Atomic Numbers
Cation are....
positve
Is salt covalently bonded? Explain.
No, because it is made from a metal joined to a non-metal
Elements can gain or lose electrons in order to attain their nearest
Nobel gas configuration
Ionic reactions takes place in:
solution
When Mendeleev created the first periodic table the elements were put in a specific order based on what?
Increasing Atomic Mass
Anions are....
Negitive
Which of the following would have covalent bonding?
A compound made from non-metals
Metals and non-metals generally react to form
ionic compounds
An ionic bond is a strong electrostatic force of attraction. Which of the following properties of ionic compounds is not related to the above characteristic?
Electrical conductivity
Why was Mendeleev's "Periodic Table" useful to scientists?
They could use it to predict the properties of unknown elements.
An atom becomes _________ when it gains electrons.
negitive
How is a single covalent bond conveniently represented?
A short horizontal line between the symbols of the elements involved
Ionic compounds do not conduct electricity in
solid state
The Lewis model is used to predict the chemical formula of an ionic compound. Use the model to predict the ionic compound formed between magnesium and chlorine.
The ionic compound formed between magnesium and chlorine is MgCl2