MI-Star 7.6

An element has a metallic-grey appearance. It also has the properties of both a metal and a nonmetal. In which section of the periodic table indicated in the illustration would the element most likely be found?

• 1

• 2

• 3

• 4

Answer explanation

"Metalloids are found on the zig-zag line"

A researcher wants to experiment with an element that reacts like phosphorus (P) but has a greater atomic mass. Which element should the researcher select for the experiment?

• Nitrogen (N)

• Sulfur (S)

• Arsenic (As)

• Silicon (Si)

Answer explanation

Elements in the same group (column) have similar properties.

Tags

NGSS.MS-PS1-1

The periodic table is organized into groups and periods of elements. The characteristics of a certain group of elements are listed in the illustration. Which of these elements is in this group?

• Lithium

• Strontium

• Aluminum

• Silicon

Answer explanation

Elements with two valence electrons are found in Group 2 or 2A.

Which two elements on the periodic table are in the same period?

• Sn and Rb

• F and Cl

• K and Ba

• Se and Te

Answer explanation

All of the elements in the same period have the same number of energy levels!!!!!

The students had to use the information on the flash card to determine possible positions of the two elements on a blank periodic table. Which periodic table has the elements placed in locations that match the information on the flash card.

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Answer explanation

Metals on the right!!!!!

Tags

NGSS.MS-PS1-1

Students were asked to identify the location of elements in the periodic table based on clues printed on game cards. Based on the data, which periodic table shows the correct location of the four elements?

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Answer explanation

The number of valence electrons identifies the group while the number of energy levels identifies the period.

Tags

NGSS.MS-PS1-1

Variable/condition that is purposely changed in the investigation

• Constant

• Dependent

• Investigation

• Independent

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

Cooling that is caused by a liquid evaporating to a gas and leaving the system

• Evaporative Cooling

• Iterative Testing

• Limitations

• Optimize

Tags

NGSS.MS-PS1-4

A state of balance due to the equal exchange of energy between two objects or systems, this results in a constant temperature

• Energy Transfer

• Equilibrium

• Random

• Spontaneous

Tags

NGSS.MS-PS3-4

The energy carried by moving objects

• Energy

• Energy Transfer

• Equilibrium

• Kinetic energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5