Investigation 2: The Periodic Table Test Review

A mystery element has 18 protons. Which on eof the following statements is true about the element?

• the element belongs in row 2 of the periodic table and is classified as a halogen

• the element belongs in row 3 of the periodic table and is classified as a noble gas

• the element belongs in row 4 of the periodic table and is classified as an alkali metal

• the element bleongs in row 5 of the periodic table and is classified as an alkaline earth metal

Tags

NGSS.HS-PS1-1

The list identifies various properties of four elements:

Element 1 is a gas at room temperature.

Element 2 is a solid which conducts electricity.

Element 3 is a gas with an effective nuclear charge of +7

Element 4 is malleable and can take the form of a shiny solid sheet.

Based on this list, which elements are metals?

• Elements 1 and 3

• Elements 1 and 4

• Elements 2 and 3

• Elements 2 and 4

Which pair of words correctly completes the statement?

Alkali metals are highly _____ since they _____ easily to form ions.

• nonreactive; lose 1 electron

• nonreactive; lose 2 electrons

• reactive; lose 1 electron

• reactive; gain 1 electron

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which arrangement of the following Period 5 elements, from left to right, orders them with respect to their atomic size, from smallest to largest?

• Rb, Sr, In, Sb, Te

• In, Rb, Sb, Sr, Te

• Te, Sb, In, Sr, Rb

• In, Sb, Te, Rb, Sr

Tags

NGSS.HS-PS1-1

The diagram shows the electron configuration around the chlorine nucleus. Chlorine has 17 protons. Which of the following correctly completes the statement?

Chlorine has _____ valence electrons, and the effective nuclear charge, Z_eff, for the chlorine atom shown is _____.

• 7; 7+

• 7; 7-

• 10; 7-

• 17; 7+

Tags

NGSS.HS-PS1-1

Which list arranges the elements Na, Li, K, Rb, and Cs in order of increasing ionization energy (from left to right)?

• Cs, Rb, K, Na, Li

• Cs, Li, Na, K, Rb

• Na, Li, K, Rb, Cs

• Li, Na, K, Rb, Cs

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

With the exception of He, how many valence electrons do noble gases have?

• 3

• 4

• 6

• 8

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which characteristic is not a periodic trend?

• atomic radius

• electron affinity

• ionization energies

• number of elements in a group

The table shows the first, second, and third ionization energies of four elements of Period 6. One of the elements is a Noble Gas. From the information in the table, which option, reading in order from left to right, correctly completes the sentences? An element may be chosen more than once or not at all.

The Noble Gas is most likely Element _____. Of the four, Element _____ has the largest atomic radius. The Element which would form cations with a 2+ charge is _____.

• 4; 2; 1

• 4; 2; 3

• 3; 3; 4

• 1; 3; 2

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the elements have atomic radii smaller than S? Select all that apply.

• Ar

• Cl

• Na

• O

• Se

Tags

NGSS.HS-PS1-1