Physical Science 5.1

Multiple Choice

In Mendeleev's periodic table, elements with similar properties were grouped:

• in the same row

• in the same column

• in diagonal lines that run from top left to the bottom right

• in pairs of 2

Multiple Choice

For which elements did Mendeleev correctly predict the properties even before it had been discovered?

• gallium

• hydrogen

• bromine

• aluminum

Multiple Choice

Mendeleev organized the elements by increasing:

• atomic number

• atomic mass

• isotope number

• number of protons

Multiple Choice

Who was the 1st to start grouping elements together?

• Mendeleev

• Lavoisier

• Bohr

• Thomson

• Einstein