Periods
What Period is Potassium (H) in?
Period 1 (horizontal row 1)
What Group is Silicon (Si) in?
How many elements are in the Hydrogen family? Name the elements.
Semi tricky, just 1: Hydrogen!
What is the atomic number of Hydogen?
1 (see that small number on the top left hand corner of the element?)
Who first created and put together the Periodic Table?
Dmirtri Mandeleev
How many periods are there in the periodic table?
How many Groups are there on the periodic table?
There are a total of 18 groups. See that little number on top of each column? It spans from 1 to 18.
Give some examples of elements that are transition Metals (at least 2 to get the full 200 pts)
Copper, Zinc, Silver, Gold, Titanium, Tungsten, etc...
What is the atomic mass or weight of hydrogen?
About 1.008, see that small at the bottom of the box for Hydrogen?
Why is the Periodic Table important?
It is an important tool for chemists because it organizes elements that we know into patterns.
Why is it called a "Periodic Table"?
Because the chemical properties of elements repeat at regular intervals, or periodically, when arranged by increasing atomic number, creating predictable patterns in rows (periods) and columns (groups).
What Group is Gold in? (minus 150 points if a hint is needed for the symbol of Gold)
The symbol for gold is Au, it is part of Group 11.
What are difference between Alkali Metals and Alkaline Earth Metals?
Alkali Metals: Group 1, the most reactive metals, 1 valence electron.
Alkaline Earth Metals: Group 2, a little less reactive than Alkali metals, 2 valence electrons.
What is the Atomic NUMBER and Atomic MASS of Lead? (HINT for the symbol for lead is minus 100 points)
What time Period are we in?
We are currently in the 21st Century, part of the Contemporary Era (post-1945), also known as the Information Age or Digital Age!
What Period is Cerium in?
Trick question..all the elements in the Lanthanide family is in Period 6.
What Group is Californium (Cf) in?
Trick question...All the elements in the Lanthanide and Actinide family is in Group 3.
Group 17 is part of what family?
The Halogen family, a highly reactive group of nonmetals on the periodic table, including fluorine, chlorine, bromine, iodine, and astatine, and Ununseptium.
What is the total Atomic mass of water (H2O)?
Hydrogen Atomic mass: 1.008
Oxygen's Atomic mass: 15.999
Total for H2O is 1.008 + 1.008 + 15.999 = 18.015
Groups usually tells us the number of valence electrons...but family does follow this pattern?
This doesn't work for transition Metals.
What do elements in the same period (row) have in common, and how do their properties change?
Elements in the same period have the same number of electron shells, with the period number indicating the highest energy level being filled
What do elements in the same group have in common?
Elements in the same group (column) of the periodic table share the same number of valence electrons, leading to similar chemical properties, reactivity, and bonding behaviors
How are Groups and Families different? Can they be the same?
Group are the vertical columns on the table, some families are the same as their groups, but not all. Some Families may contain several groups, such as transition Metals spanning group 3 to 12.
From Period 1 to 7 and Group 1 to 18, does the atomic mass number increase, decrease, or stay the same? Give me an Example.
It increases!For example, Potassium in Group 1 and Period 4 has an atomic mass of 39.098. To the right, in group 2, Calcium (next to Potassium) has a greater atomic mass of 30.078. Below Potassium, Rubidium is in Period 5 with an atomic mass of 84.468.
Is the periodic table set or can it change (as in, can things be added or removed from the table over time?)
It is not set in stone, new elements that are discovered can be added to it, but typically, elements are not removed from the table.