Cards in this guide (10)
Were JJ Thomson's ideas accepted by society at the time
yes jj thomsons ideas or beliefs were accpeted
What is the force on the Moon's surface compared to the force of gravity on earths surface
The moon's gravity is about 1/6th of the earth's.
What was the atomic theory about
the structure of the atom
How were the elements arranged on his periodic table
Elements are arranged in the order of increasing atomic number
in the modern periodic table.
What elements have the highest and lowest ionization energy
Helium has the highest first ionization energy and francium has
the lowest first ionization energy.
How many valence electrons does B boron have
Boron has 3 valence electrons.
What period is Pb in
How have chemists used the periodic table over time
What period is Zn (zinc) in
How does rubidium form an ion
Rubidium ionizes by losing its one valence electron. Its charge
is therefore +1, and the ion is isoelectronic with Kr.
An engineer chooses to use a composite material that incorporates concrete and recycled glass for the floors of a new building. This is an example of