Periodic Table Test Review

The number six represents:

• atomic mass

• number of neutrons and protons

• number of neutrons

• number of valence electrons

• atomic number

Which element is represented by this model?

• Carbon

• Fluorine

• Magnesium

• Sodium

Tags

NGSS.MS-PS1-1

How are elements arranged in the modern periodic table?

• by atomic mass

• by atomic number

• by number of neutrons

• by number of electrons

Electrons on the outermost shell of an atom are called?

• Molecule Electrons

• Valance Electrons

• Leveled Electrons

• Atoms Electrons

How many neutrons are in a neutral atom of phosphorus with an atomic mass of 31 and an atomic number of 15?

• 31

• 46

• 15

• 16

How many electrons are present in a neutral atom with an atomic number of 23 and an atomic mass of 51?

• A 23

• B 74

• C 51

• D 28

Which particle in an atom determines the identity of an element?

• Neutron

• Proton

• Electron

Elements are grouped together in the same family or group because they

• are all metals

• have similar properties

• have the same atomic mass

• have the same number of protons

Most elements are:

• Metals

• Nonmetals

• Metalloids

Which elements often share properties?

• Those in a period

• Those with the same color

• Those in the same family