19 questions
How can you find how many bonds an atoms will make using the Periodic Table?
the number of valence electrons
By counting valence e- and open valences it has, whichever number is larger will be the number of bonds
By counting valence e- and open valences it has, whichever number is smaller will be the number of bonds.
the group number
How many electrons will Group 17 elements take/give or share?
They will usually take 2 electrons.
They will usually give 1 electron.
They will usually share 1 electron.
They will usually take 1 electron.
You can estimate the number of bonds by counting the number of ___________ e- and the number of ___________ valences. The smaller number will be the ______________ of bonds
valence1count columns
valence, open, number
valence, closed, number
valence, bond, number
What is an ion?
A charged atom
A bond that forms when 2 atoms share valence electrons.
has more neutrons than protons
A heavy atom
What are the inert gases (noble gases)?
These five toxic, non-metallic elements make up Group 17 of the periodic table and consist of: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At)
Elements in Group 18. They do not react to other substances because their outer shell is full. /*Helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn)*
consists of the elements found in Group 16 of the periodic table and is considered among the main group elements. ... It consists of the elements oxygen, sulfur, selenium, tellurium and polonium.
The group consists of nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), bismuth (Bi), and moscovium (Mc)
stable atoms have
... completed shells
the number of electrons does not equal the number of protons
doesn't have the “correct” number of neutrons
central core containing a collection of protons and neutrons
An unstable atom has
... completed shells
... an incomplete outer energy level.
has enough binding energy to hold the nucleus together permanently
has a net charge of 0
What is a valence shell?
outermost electron shell
any electron shell
innermost electron shell
middle electron shell
What is an element?
Smallest particle of an element
an incomplete outer energy level.
Electrons on the outermost energy level of an atom
A pure substance made of only one kind of atom
What is an ionic bond?
A bond that forms when 2 ions of opposite charge; (+) and (-), come together like magnets.
A bond that forms when 2 atoms share valence electrons.
A bond that forms when 2 atoms take valence electrons.
A bond that forms when 2 atoms give valence electrons.
What is a covalent bond?
A bond that forms when 2 atoms share valence electrons.
A bond that forms when 2 atoms take valence electrons.
A bond that forms when 2 atoms give valence electrons.
A bond that forms when 2 ions of opposite charge; (+) and (-), come together like magnets.
What are molecules?
A pure substance made of only one kind of atom
Smallest particle of an element
Groups of two or more atoms held together by chemical bonds
Everything that has mass and takes up space