Atoms
Atoms
Periodic Table
Periodic Table
Bonding
100
A negative particle of an atom.
What is an electron?
100
neutrons
What is a subatomic particle with no charge?
100
Alkali Metals
What is Group one on the PT?
100
An isotope commonly used to determine the age of fossils.
What is Carbon 14?
100
Electrons are shared amongst a group of atoms in a "sea of electrons".
What is metallic bonding?
200
Found in the nucleus, always the same as the atomic number.
What is a proton?
200
2 electrons
What is the maximum number of electrons found in the first energy level?
200
Has two valence electrons.
What is Group two or the Alkaline Earth Metals on the PT?
200
All group 7 (or 17) elements.
What elements have 7 valence electrons?
200
An atom loses an electron, another atom gains an electron, they bond.
What is an ionic bond?
300
Varies in different isotopes of an element.
What is a neutron?
300
Eight electrons
What is the maximum number of electrons in the valence of the Noble Gases?
300
The most reactive group of elements, especially when exposed to non-metals.
What are the Alkali metals or group 1 on the PT?
300
Left side of the stairstep
What elements are metals?
300
One or more atoms bonds together by sharing electrons.
What is a covalent bond?
400
Has either two or eight valence electrons.
What is a Noble Gas?
400
A weighted average of all isotopes of an element.
What is the atomic mass?
400
24 protons, 25 neutrons
What makes an atomic mass of 49?
400
Right side of the stairstep.
What elements are non-metals
400
Bonds to four atoms at a time, making it the "skeletal structure" atom for living things.
What is Carbon?
500
An ion.
What is the name of an atom that loses or gains an electron?
500
Rounding the mass of an element.
What is the mass number?
500
Have some of the properties of metals, some of non-metals.
What are metalloids?
500
Energy levels are filled.
What happens when you move across the periodic table?
500
A group 1 atom and a group 7 atom come together.
What is a salt or ionic bond?
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