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28 Cards in this Set

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What is ionization energy?

the minimum amount of energy required to remove an electron from the ground state

Why is the second ionization energy higher than the first?

The second ionization energy of Mg is larger than the first because it always takes more energy to remove an electron from a positively charged ion than from a neutral atom.

Why do noble gasses not have listed ionization energies?
Because they have stable, filled shell configurations
On the periodic table, what is the difference between a group and a period?

periods=horizontal


groups=up and down

Identify:the alkali metalsAlkali earth metalsTransition metalsHalogensInner transition metalsNoble gasses

alkali metal=group 1


alkali earth=group 2


halogens=17


transition metals=d block


inner transition=elements 51-71 and 89-103


noble gases=group 18





How can you tell the difference between Covalent, ionic, and metallic bonds?
Covalent bonding occurs when atoms/molecules share pairs of electrons.



Ionic bonding occurs when transfer of electrons takes place




Metallic bonding is bonding that occurs in metals.

How do ions form?
when atoms lose or gain electrons.

how to find the charge of an ion

Subtract the number of electrons from the number of protons in an atom as a basic way of calculating the charge of the ion. For example, if a sodium atom loses one electron, subtract 10 from 11, which equals 1. A sodium ion has a +1 charge, which is notated as Na+.

how to tell the difference between a cation or a anion

get later

what is the octet rule?

atoms of main-group elements combine in a way where each atom has eight electrons in its valence shell
How many valence electrons does a helium atom have?

2

What is the charge on the strontium ion?

2+

How many electrons does silver have to give up in order to achieve a noble-gas electron configuration?

1

How many electrons does barium have to give up to achieve a noble-gas electron configuration?

2

Which of the following elements does NOT form an ion with a charge of 1?

fluorine

What is the formula of the ion formed when tin achieves a stable electron configuration?

sn4+

What is the formula of the ion formed when cadmium achieves a noble-gas electron configuration?

cd2+

Which of the following occurs in an ionic bond?

oppositely charged ions attract

What is the name of the ionic compound formed from lithium and bromine?

lithium bromide

Which of the following is NOT a characteristic of most ionic compounds?

they have low melting points

What type of ions have names ending in -ide?

only anions

When Group 2 elements form ions, they

loose 2 electrons

Which of the following is NOT a cation?


sulfate

Which of the following compounds contains the Mn3+ ion?

mn203

Which of the following is true about the composition of ionic compounds?
They are composed of anions and cations.
Which set of chemical name and chemical formula for the same compound is correct?
potassium chloride, KCl
Why are metals good conductors of electricity?
The free electrons in metalscan move through the metal, allowing metals to conductelectricity.
Why are most ionic compounds brittle?
because the electrons are tightly held by the ions,