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Atomic structure JC

Main terms in Atomic structure & Periodic table

What is the definition of Atomic number? The number of protons in an atom
What sub atomic particles are found in the nucleus? Protons and Neutrons
What is the mass number of an atom? The mass number is the number of protons and neutrons in an atom
What terms describe the particles found in the atoms? Sub-atomic particles
How many naturally occurring elements are there? 92
Definition of an atom? Smallest particle of an element that still has the properties of that element
Charge on an electron Negative
How many groups are there on the Periodic table? 8
Group 1 are called? Alkali metals
Group 8 are called? Noble
The charge on a proton? Positive
He discovered the Periodic table? Dimitri Mendelev
Elements are arranged in the Periodic table according to? Increasing Atomic number
Group 2 are called? Alkaline Earth metals
The gas formed when group one metals react with water? Hydrogen
The particles found in the nucleus of the atom? Protons and Neutrons
The group number tells you? How many electrons in the outer shell
The period number tell you? How many shells/orbits the atom has
Reactivity increases going across the Periodic table? True or False False, decreases going across table
Which is the most reactive of these 3 group 1 metals? Sodium, Potassium, Lithium Potassium
What are the two types of chemical bonding? Ionic and covalent bonding
Ionic bonding occurs between a metal and a _____________ non-metal
Elements react because they want to achieve a __________ outer shell of __________ electrons full, eight
The metal becomes _____________ charged when it loses an electron positively
An element that has lost or gained electrons to become charged is known as a _____________ Ion
Where electrons are shared this is known as _______________ bonding Covalent
Covalent bonding occurs between two ___________ ____________ Non-metals
Sodium chloride and magnesium oxide have what type of bonding Ionic
When a element gains electrons it becomes ____________ charged Negatively
Water, methane and carbon dioxide have what type of bonding? Covalent
Created by: scienceatkcc
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