What is electronegativity?

Ability of an atom within a molecule to attract e- to itself

What is the shielding effect?

shells of an atom increase electron repulsion

What does the force of attraction between protons and electrons depend on?

Distance between valence electrons & nucleus, & # of protons

What is effective nuclear charge?

The nucleus' "pull" on the valence electrons

What is the Ionization Energy?

The minimum energy required to remove an e- from an atom

What is the atomic radius?

Distance from center of nucleus to the e- cloud's outer edge

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Periodic Trends - Final Review

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A quiz to understand the trends on the Periodic Table of Elements. #chemistry

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Questions 14

Answers

1
As you go across a period, what does the ionization energy do?
decrease
increase
2
What is electronegativity?
The negative charge of an atom
Ability of an atom within a molecule to attract e- to itself
Ability of an atom to remove e- from itself
Ability of an atom to attract e- to itself
3
What is the shielding effect?
shells of an atom increase electron repulsion
The number of electrons in a shell
The number of shells in an atom
shells of an atom increase attraction of valence electrons
4
Are you ready for this final?
Not really
IM SHOOK
Nope
You betcha
5
What does the force of attraction between protons and electrons depend on?
The mass of the atom and the number neutrons
Physical properties of an element & the number of protons
The chemical properties of an element and its mass
Distance between valence electrons & nucleus, & # of protons
6
What is effective nuclear charge?
The charge of an atom
The nucleus' "pull" on the valence electrons
The number of neutrons in an atom
The number of protons in an atom
7
What is the Ionization Energy?
The minimum energy required to attract and e- to an atom
The minimum energy required to remove an e- from an atom
8
What is the most electronegative element?
Cesium
Helium
Hydrogen
Fluorine
9
As you go down a group, what does the ionization energy do?
increase
decrease
10
As you go across a period, what does the electronegativity do?
decrease
increase
11
As you go down a group, what does the electronegativity do?
decrease
increase
12
What is the atomic radius?
Distance from center of nucleus to the e- cloud's outer edge
Half of the distance of the electron cloud
The radius of the nucleus
The distance between the nucleus and the 1st shell
13
As you go across a period, what does the atomic radius do?
decrease
increase
14
As you go down a group, what does the atomic radius do?
increase
decrease

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