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Atoms
Elements
Periodic Table
Bonding
Chemical Misc
100
Most of the mass of an atom is here.
What is the nucleus?
100
Has atomic number 2.
What is helium?
100
Elements with full valence shells are in this group.
What are noble gases (group 18)?
100

The transfer of electrons from the valence shell of one atom into the valence of a different atom.

What is an ionic bond?

100

How many electrons can be held in the valence shell.

What is 8?

200
Positively charged particle in an atom.
What is a proton?
200
A diatomic element.
What is either hydrogen, nitrogen, oxygen, fluorine, chlorine, iodine, or bromine?
200
Name for elements in Group 1.
What are alkali metals?
200

When Calcium loses 2 electrons It becomes

 a Ca+2 ion

200

The mass of an atom with 10 protons, 11 neutrons and 10 electrons.

What is 21?

300
Protons and Neutrons.
What are particles found in the nucleus of an atom?
300
The only nonmetal on the left side of the periodic table.
What is hydrogen?
300
Classification that indicates number of energy levels.
What are periods?
300

When two atoms share electrons unequally to obtain a stable octet.

What is a polar covalent bond?

300

C-12 and C-14.

What are isotopes?

400
Negatively charged particles found in atoms.
What are electrons?
400
The four primary elements in living things.
What are carbon, hydrogen, oxygen, and nitrogen?
400
Word that indicates repeating patterns.
What is periodic?
400

An electronegativity difference of 0.3

What is a nonpolar covalent bond?

400

The number of valence electrons that S has

What is 4?

500
An atom that has either lost or gained an electron.
What is an ion?
500
Elements with varying numbers of neutrons.
What are isotopes?
500
Have characteristic of both metals and nonmetals.
What are metalloids?
500

The bond found in diatomic molecules.

What is a nonpolar covalent bond?

500

The bonds that exists between water molecules.

What is H bonds?