Which group of elements would all be considered nonmetals?

• Li, Na, Mg

• Ti, V, Cr

• C, N, O

• Be, C, F

What phase of matter are almost all metals?

• Solid

• Liquid

• Gas

Which of the following is considered an Alkali Metal?

• Li

• Mg

• Cl

• Kr

Which of the following elements would be considered highly reactive

• Sodium

• Magnesium

• Oxygen

• Neon

Electronegativity ____________ going down a group and _________________ going left to right on the periodic table.

• increases, increases

• increases, decreases

• decreases, increases

• decreases, decreases

Sodium (Na) and potassium (K) are in the same group on the periodic table. Based on their locations, which statement about sodium and potassium is true?

• Sodium is less electronegative than potassium. 
• Sodium has fewer energy levels than potassium. 
• Sodium has a larger ionic radius than potassium. 
• Sodium has lower ionization energy than potassium. 

Tags

NGSS.HS-PS1-1

Which of these elements has the greatest atomic radius? 

• H
• N
• Cl
• Cs

The Periodic Table of the Elements is useful for revealing patterns and trends in the elements. Which statement accurately describes a pattern in the size of atomic radii in the Periodic Table of the Elements?

• Atomic radii decrease from left to right across a period and decrease from top to bottom in a group.
• Atomic radii increase from left to right across a period and increase from top to bottom in a group.
• Atomic radii decrease from left to right across a period and increase from top to bottom in a group.
• Atomic radii increase from left to right across a period and decrease from top to bottom in a group.

The symbols W, X, Y, and Z represent four elements shown on the outline of a periodic table.
Which element has the highest electronegativity?

• W
• X
• Y
• Z

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Fluorine, chlorine, bromine, and iodine all have the same number of valence electrons and have a tendency to gain electrons. Which element has the greatest ionization energy and electronegativity?

• fluorine
• chlorine 
• bromine 
• iodine