T1.2 The Periodic Table

What is the central part of an atom called?

• Electron cloud

• Proton

• Nucleus

• Neutron

Which subatomic particle is found in the nucleus of an atom?

• Electron

• Proton

• Neutron

• Both B and C

What is the charge of an electron?

• Positive

• Negative

• Neutral

• Both positive and negative

What did Mendeleev notice about some elements?

• They had different chemical properties.

• They had similar chemical and physical properties.

• They had the same atomic mass.

• They were all metals.

How did Mendeleev arrange the elements?

• In alphabetical order.

• By their color.

• In order of increasing atomic mass.

• By their state of matter.

What does the term "atomic mass" refer to?

• The mass of a single atom of an element

• The average mass of all the isotopes of that element

• The number of protons in an atom

• The number of neutrons in an atom

Tags

NGSS.MS-PS1-5

Which of the following is represented by the symbol "O" in the periodic table?

• Hydrogen

• Carbon

• Oxygen

• Nitrogen

What does the periodic table show?

• A chart showing all of the elements arranged alphabetically.

• A chart showing all of the elements arranged according to the repeating pattern of their properties.

• A chart showing all of the elements arranged by their atomic mass.

• A chart showing all of the elements arranged by their discovery date.

Which of the following is NOT a feature of the periodic table?

• Arrangement of elements by repeating patterns of properties.

• Grouping of elements by similar chemical properties.

• Listing elements in alphabetical order.

• Displaying elements with similar properties in columns.

What do the rows in the periodic table represent?

• Groups

• Periods

• Elements

• Compounds