Bonds
What kind of bond is formed between ions?
What is ionic bond
Which group of elements on the periodic table are the least reactive?
Noble gasses
Which type of atom is considered the LEAST stable?
An atom that only needs 1 electron in the outer shell.
Why do polar covalent bonds result in partial charges on either end of the bond?
Electrons are pulled towards the electronegative end of the bond.
What two differences would you find in isotopes of the same element?
Different number of neutrons and therefore different atomic mass.
What kind of bond forms between atoms with similar electronegativities
Non polar covalent bond
Why does Helium not typically form a chemical bond with other elements?
It has a full valence shell.
Name the subatomic particles, their location and charge.
Proton-positive-nucleus
neutron-neutral-nucleus
electron-negative-electron cloud
What is the difference between a compound and a molecule?
A compound contains more than one type of atom, where a molecule just needs to contain more than one molecule. (all compounds are molecules but not all molecules are compounds)
What kind of charge does a cation have?
postive
What type of bond is considered the weakest?
Hydrogen bonds because it takes little energy to break the bond.
What makes up the mass of an element?
How many orbitals does a sodium atom have?
3
Molecule (contains two of the same atoms H2)
An uncharged atom gains an electron. What kind of ion would result and what would the charge be?
anion, -1 charge
In a polar covalent bond what determines which element the electrons spend more time around?
The electrons will spend more time around the more electronegative element.
If a neutral element has 45 protons how many electrons does this element have?
45
How many electrons can be held in the 5th energy level or orbital?
50
What makes a mixture different than a compound?
Mixtures can be separated by physical means.
Which group on the periodic table is the most likely to become cations?
Alkali Metal (want to give up 1 electron to have a full outer shell making them a +1 charge).