Atomic Structure & Periodic Table Review

Which of these elements has the greatest average atomic mass?

• B

• C

• N

• Al

Which of these elements has an atomic number of 14?

• N

• Al

• Si

• P

Tags

NGSS.MS-PS1-1

Which of these best shows that calcium is different from all other elements?

• Its positive electrical charge

• Its presence in milk

• Its number of protons

• Its ability to combine with oxygen

Which of the following elements has 16 protons?

• Oxygen

• Chlorine

• Sulfur

• Germanium

Tags

NGSS.MS-PS1-1

Which of the following elements belongs to the family indicated?

• Nitrogen belongs to the halogen family.

• Helium belongs to the noble gas family.

• Calcium belongs to the alkali family.

• Sodium belongs to the alkaline earth family.

Which element is an alkali metal?

• K

• Mg

• Al

• Ag

Which of the following lists the elements in order, from those having the least protons to those having the most protons in the atoms?

• O, N, B, Li

• Na, S, Al, Cl

• O, S, Se, Te

• Rb, K, Na, Li

The diagram above shows a block from the periodic table. The number six represents the -

• atomic mass of the element carbon

• atomic number of the element carbon

• number of neutrons in the element carbon

• number of valence electrons element carbon

Tags

NGSS.MS-PS1-1

According to the data in the table, which sample of matter is most likely a metal?

• 1

• 2

• 3

• 4

In this atomic model, point A represents -

• a proton

• a nucleus

• a neutron

• an electron

Tags

NGSS.MS-PS1-1