Ions
What are cations?
What is....
Positive ions
Which element has a higher electron shell, Hydrogen or Radium?
What is ...
Radium?
What group number contains Alkali metals?
What is.....
Group 1
Which type of element is shiny, conducts electricity, and is malleable?
What is...
a metal?
Is this an ionic compound?: MgO
What is ...
Yes
Elements in Group 17 of the periodic table typically form ions with what charge?
What is .....
-1?
What is more electronegative, Oxygen or Nitrogen?
What is...
Oxygen?
Elements in Group 2 (alkaline earth metals) typically form ions with what charge?
What is...
+2?
Where on the periodic table are nonmetals mostly found?
What is ....
the upper right corner (excluding Group 18)?
What method is used to create an ionic compound?
What is ...
Crisscross method?
What is the typical ionic charge of iron in the compound FeCl₃?
What is...
+3?
How many shells does Galium have?
What is...
4?
Explain why halogens (Group 17) are considered highly reactive.
What is....
Halogens have seven electrons in their outer shell and are one electron short of a full shell
Is Aluminum a metalloid, metal, or gas?
What is...
a metal?
What charge is needed to make X?Cl?
What is ...
+1?
In the compound Ca(NO₃)₂, what is the charge on the calcium (Ca) ion, and how do you know?
What is...
+2, because each nitrate (NO₃⁻) has a -1 charge and there are two of them, so calcium must be +2 to balance the -2 total
Which element is more reactive, Sodium or Beryllium?
What is...
Sodium?
Why do elements in the same group often have similar chemical properties?
What is...
because they have the same number of valence electrons, which determine how they react chemically?
Why are most elements on the periodic table classified as metals?
What is ....
because metals tend to lose electrons easily, and this is a common property of atoms with low electronegativity and low ionization energy, which are found in most elements?
What do you need to put around polyatomic ions in ionic compounds?
What is...
Parenthesis?
Why do elements on the left side of the periodic table usually form positive ions, while elements on the right side (except noble gases) usually form negative ions?
What is...
because elements on the left want to lose electrons to get a full outer shell, and elements on the right want to gain electrons to get a full outer shell?
Carbon, Sulfur, Chlorine, Sodium?
What is...
Carbon < Chlorine < Sulfur < Sodium?
How does the number of valence electrons change as you move across Period 3 from sodium (Na) to chlorine (Cl), and how does this affect the chemical properties of these elements?
What is...
the number of valence electrons increases from 1 (Na) to 7 (Cl), which changes the elements from metals to nonmetals and affects their reactivity and bonding behavior?
A new element is discovered. It conducts electricity under certain conditions, is brittle, and is used in making semiconductors. Based on this information, how would you classify it, and why?
What is ....
a metalloid, because it has semiconducting properties, conducts electricity only in specific conditions, and is brittle, which matches characteristics of known metalloids like silicon?
Use the crisscross method to write the formula for the compound formed from Al³⁺ and SO₄²⁻.
What is...
Al₂(SO₄)₃?