Question | Answer |
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 |