Electrons and the Periodic Table

Front

Each energy level has a _______________ number of electrons it can hold.

Back

maximum

Front

The name of an element is represented by the _______________________.

Back

chemical symbol

Front

What does the number represent in uranium 238?

Back

the sum of the protons and neutrons

Front

Fe and Pb are chemical symbols for which two elements?

Back

iron and lead

Front

These are represented by horizontal rows in the periodic table.

Back

periods

Front

Who was the first scientist to organize elements into the periodic table by atomic mass?

Back

Mendeleev

Front

Electrons further away from the nucleus of the atom move _____________ than do electrons closer to the nucleus.

Back

faster

Front

The sum of the protons and neutrons of an atom is called the atom's ___________________.

Back

atomic mass

Front

How many periods are located in the periodic table?

Back

7

Front

Which is not a property of metals? Options: brittle, hardness, gases, poor conductors

Back

hardness