Exploring Groups 1 and 7 Properties

During a science experiment, Tony Stark and Peter Parker observed a shiny metal in the Avengers lab that was soft enough to be cut with a knife and conducted electricity very well. Based on these observations, which property of Group 1 elements (alkali metals) did they most likely notice?

• They are good conductors of electricity.

• They are gases at room temperature.

• They are hard and dense.

• They have high melting points.

Iron Man, Captain America, and Thor are helping Bruce Banner in his laboratory to test how Group 1 elements react with water. As they test lithium, sodium, and potassium, what do they notice about the reactivity of these elements as they go down the group?

• It decreases.

• It increases.

• It stays the same.

• It fluctuates randomly.

During a science experiment, Tony Stark and Peter Parker are investigating the properties of Group 7 elements (halogens). Which of the following is a typical property they would observe?

• They are shiny metals.

• They are poor conductors of electricity.

• They are all colorless gases.

• They have high melting points.

Peter Parker and Tony Stark are helping Bruce Banner organize different metals for a science experiment at Avengers HQ. They have samples of lithium, sodium, potassium, and other Group 1 elements. As they arrange the samples by their position in the periodic table, what trend do they notice in the melting points as you go down the group?

• Melting points increase.

• Melting points decrease.

• Melting points stay the same.

• Melting points first increase, then decrease.

Iron Man, Captain America, Black Widow, and Thor are in the Avengers laboratory, each testing a different Group 1 element to observe which one reacts most vigorously when dropped into water. After conducting their experiments, they compare the results. Which of the following Group 1 elements did they find to be the most reactive?

• Lithium

• Sodium

• Potassium

• Cesium

Spider-Man and Iron Man are helping their science teacher organize a chemistry experiment with Group 7 elements. They notice some changes as they move from chlorine to iodine. Which of the following is a correct trend for Group 7 elements as you go down the group?

• Reactivity increases.

• Reactivity decreases.

• Atomic size decreases.

• Boiling points decrease.

During a science experiment at Stark Industries, Tony Stark and Peter Parker observed a sample of chlorine kept at room temperature. What is the physical state of chlorine in their experiment?

• Solid

• Liquid

• Gas

• Plasma

Tony Stark and Bruce Banner are conducting an experiment in their lab where they add sodium to water. Which equation correctly represents the reaction they observe?

During a mission to protect the city, Marvel heroes Iron Man, Black Widow, and Spider-Man are discussing which Group 7 element would be the most effective at disinfecting water supplies due to its high reactivity. Which element are they talking about?

• Iodine

• Bromine

• Chlorine

• Fluorine

During a science experiment at Stark Industries, Tony Stark and Peter Parker observed a sample of iodine at room temperature. What is the color of iodine that they saw?

• Yellow-green gas

• Red-brown liquid

• Grey solid

• Colorless gas