The Periodic Table - Page 6
Questions
- The elements in Group 7A are known by what name?
- Why are all members of the same family on the periodic table likely to react in the same way and with the same elements?
- What group is sodium in?
- What happens when atoms from group IA combine with atoms from group VII?
- What is the most reactive metal on the periodic table?
- Why did Mendeleev not include plutonium in his periodic table of 1871?
- In the modern periodic table, how are the elements arranged?
- What are the organizing principles of the Modern Periodic Table of Elements?
- How would you use the periodic table to identify the atomic number, atomic mass, and number of protons, neutrons, and electrons in an atom of neon (Ne)?
- Mendeleev left blanks in his periodic table (indicated by small dashes). Why, for example, did he put As, the next heaviest known element after Zn, in group 5 instead of ingroup 3 or 4?
- What group is potassium in?
- What is the first element on the periodic table?
- Who developed the first periodic table?
- Each successive element on a period table going from left to right across a period has what?
- The chemical family of elements called the noble gases are found in what column of the periodic table?
- Why is hydrogen sometimes grouped with the alkali metals in some Periodic Tables?
- Suppose element X is a poor conductor of electricity and breaks when hit with a hammer. Element Z is a good conductor of electricity and heat. In what area of the periodic table does each element most likely belong?
- What is a combination of chemical symbols and numbers to represent a substance?
- How many periods are in the periodic table?
- What does the periodic table tell about an element?