Periodic Trends

Periodic Trends

2020

Multiple Choice

Strontium and barium have similar chemical properties because atoms of these elements have the same number of

• protons

• neutrons

• electron shells

• valence electrons

Multiple Choice

Which element is classified as a metalloid?

• boron

• potassium

• sulfur

• xenon

Demonstration

• Take out your notebook, title a new page with "Demonstration."

• Draw two boxes and label the first "Beginning" and the second "Ending"

• After the demonstration describe what happened and write three questions you have.

Group 1 Reactivity

Lab 9- Periodic Trends

•Complete independently 

•Go through step by step

•Part C: USE YOUR PERIODIC TABLE

Multiple Choice

Which trend is observed as the first four elements in Group 17 on the Periodic Table are considered in order of increasing atomic number?

• Electronegativity increases.

• First ionization energy decreases.

• The number of valence electrons increases.

• The number of electron shells decreases

Multiple Choice

As the elements in Period 2 are considered in order from lithium to fluorine, there is an increase in the

• atomic radius

• electronegativity

• number of electron shells

• number of electrons in the first shell

Multiple Choice

Why does radius of an atom increase as you go down a group?

• Less reactive

• More valence electrons

• More electron Shells

• Less protons

Multiple Choice

As a calcium ATOM becomes a calcium ION…

• electrons are lost and the radius becomes smaller

• electrons are lost and the radius becomes larger

• electrons are gained and the radius becomes smaller

• electrons are gained and the radius becomes larger

Multiple Choice

What is the trend in First Ionization Energy (FIE) as you go from Potassium (K) to Bromine (Br) in Period 4?

• FIE increases

• FIE decreases

• Stays the same

Multiple Choice

Which group of elements in group 17 is a list of elements from lowest FIE to highest FIE?

• Br, Cl, I, F

• F, I, Cl, Br

• I, Br, Cl, F

• F, Cl, Br, I

Multiple Choice

Which group of elements in group 17 is a list of elements from lowest EN to highest EN?

• Br, Cl, I, F

• F, I, Cl, Br

• I, Br, Cl, F

• F, Cl, Br, I

Multiple Choice

Which element has the highest Electronegativity?

• A

• B

• C

• D

• E

Multiple Choice

Which element has 8 valence electrons?

• A

• B

• C

• D

• E

Multiple Select

Which element(s) would have luster and conduct electricity? (select all that apply)

• A

• B

• C

• D

• E

Multiple Choice

Which element is a metalloid?

• A

• B

• C

• D

• E