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Section 3-1 Science

Organizing The Elements

Mendeleev created the first periodic table by arranging elements in order Increasing atomic mass
How did chemists change Mendeleev's periodic table in the early 1900s? They used atomic number instead of atomic mass to organize the elements
From an element's location in the periodic table, you can predict Its properties
Which of these statements about a column of the periodic table is true? The elments have similar properties
The factor that determines how an atom interacts with other atoms is its Number of valence electrons
Which of the following have the same number and arrangement of valence electrons The elements in a group
Where are metals located in the periodic table? To the left of the zig zag line
In which part of an atom are the valence electrons located Farthest from the nucleus
The elements in a row of the periodic table Are in the same period
The elements in a column of the periodic table Are in the same family
What information in the periodic table indicates the number of protons in an atom The elements atomic number
Which part(s) of the atom move around the nucleus Electrons
The atomic number of an element is based on the Number of protons in its nucleus
Mendeleev discovered that periodic patterns appeared when he arranged the elements in order of increasing Atomic mass
The property of an element that indicates the number of protons in its atoms is the Atomic number
A column of elements in the periodic table is called a group, or Family
The electrons in an atom that are involved in forming chemical bonds are called Valence electrons
In the 1800s, Dmitri Mendeleev organized the first truly useful Periodic table
An element's....can be predicted from its location in the periodic table. Properties
Each element is given a specific.... that usually consists of one or two letters Chemical symbol
Elements in Group 1 have....valence electron(s) One
Created by: Yael