Periodic Table and Trends Test

Front

A horizontal row of elements in the periodic table

Back

Period

Front

What is electronegativity?

Back

Electronegativity is how good an atom is at attracting electrons.

Front

How did Rutherford discover the proton?

Back

Through the Gold Foil Experiment.

Front

Who claimed that matter was made of small, hard particles called 'atomos'?

Back

Democritus

Front

Which element has the largest electronegativity in the halogens?

Back

Fluorine (F)

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom.

Front

Define atomic mass.

Back

The weighted average mass of an element's isotopes.

Front

What is a group in the periodic table?

Back

A vertical column of elements with similar properties.

Front

What is the significance of the periodic law?

Back

It states that the properties of elements are a periodic function of their atomic numbers.

Front

What are alkali metals?

Back

Elements in Group 1 of the periodic table, highly reactive and have one electron in their outer shell.