Cells
A subatomic particle with a positive electricity charge.
What is a proton
What are compounds?
What is a pure substance where its molecules are made up of different kinds of atoms
How do you find the number of neutrons in an element
Mass number - Atomic number OR Mass number- Number of Protons
What is a group on the Periodic Table?
What is a vertical column
What group/column are the Alkali Earth metals in?
What is Group II
What happens to an electron as it moves closer to the nucleus?
What is lower energy and more attraction
What subatomic particle does not affect the mass of an atom?
What is an electron
Who created the Periodic Table
Who is MENDELEEV
What is the lightest element in the Periodic Table?
What is Hydrogen
What are Chalcogens?
What is the oxygen family (also known as group 16)
Where is the DNA held in an atom?
What is the nucleus
Is O2 a compound, element, or molecule?
What is an element
What did Thomson discover?
What is a subatomic particle
Why is it called the Periodic Table?
What is because of the way the elements are arranged
How many groups are in the Periodic Table?
What is 18 groups
What does the following equation determine? 1.672621898 (21)×10−27 Kg
What is the mass of a proton or neutron
What is the chemical compound for salt?
What is NaCl
What is the difference between Mendeleev's and Moseley's periodic table?
Mendeleev - arrange table according to atomic mass.
Moseley - arranged in ascending order according to atomic number.
What is the Periodic Law?
What is a law stating when elements listed in order of their atomic fall into reoccurring groups so that elements with similar properties occur at a regular interval
What kind of elements make up the staircase in the Periodic Table?
What are metalloids
What item/object were cells first seen in under a microscope?
What is a cork
Which element in the periodic table is hardest to find?
What is Astatine
How many elements did Mendeleev initially create the Periodic Table with?
What is 63 elements
How many elements are in the Periodic Table?
What is 118
What is the most expensive natural element on the periodic table?
What is Francium