Name that Element
This element is in Group 1 (alkali metals) and Period 2.
Lithium
This type of element shines, conducts electricity, and is malleable. Name the type of element.
Metal
How many valence electrons does oxygen (O) have?
6
What is an ion?
Which of the following elements has the highest ionization energy?
a) Na b) Mg c) Cl d) Al
Cl
Group 17 (halogens) and Period 3
Chlorine
This type of element brittle, poor conductor, and can be solid, liquid, or gas. Name the type of element.
Nonmetal
What is the most common charge of sodium (Na) when it forms an ion?
+1
What is the magic number of electrons?
8
This property increases up a group and to the right because the elements want electrons and to control them.
Electronegativity
This element is in Group 18 (noble gases) and Period 4.
Krypton
This type of element has properties of both metals and nonmetals and is often found along the zig-zag line of the periodic table. Name the type of element.
Metalloid
An element in Group 14, carbon (C), has 4 valence electrons. How many electrons does it gain or lose when forming an ion?
Gain or lose 4
What is a positive ion called? What is a negative ion called?
Cation and anion
What is the general trend for atomic radius?
Increases going down and to the left.
This element has the electron configuration: 1s² 2s² 2p⁶ 3s² 3p⁴
Sulfur
This is an example of a metal in Group 1 (alkali metals).
What is sodium (Na)?
How many valence electrons does the element with the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p³ have?
5
What is the purpose of gaining or losing electrons?
To have a full outer energy level!
Why does atomic radius increase as you go down a group?
Because electrons are added to higher energy levels, which are farther from the nucleus, increasing the size of the atom.
This element has 3 energy levels and is in Group 2 (alkaline earth metals).
Magnesium
This nonmetal exists as a diatomic molecule in nature, is a poor conductor, and is in Period 2, Group 16 of the periodic table. Name the element.
Oxygen
An aluminum ion (Cl-1) has how many valence electrons?
8
Provide the name and charge of an ion formed by aluminum (Al).
+3, Aluminum Ion
Why does ionization energy increase as you move from left to right across a period?
Because the number of protons increases, pulling electrons closer to the nucleus and making them harder to remove.