Quiziz Review Unit 1 Topic 2-23

A student drew atomic models of four elements.

Based on these drawings, which element is the least reactive?

• Neon, because it has two energy levels with eight electrons in the second level

• Chlorine, because it has three energy levels with seven electrons in the third level

• Gallium, because it has four energy levels with three electrons in the fourth level

• Tin, because it has five energy levels with four electrons in the fifth level

Tags

NGSS.MS-PS1-1

A chemist made the table below to record some atomic properties of four elements.

Based on the information in the table, which conclusion about the chemical reactivity of these elements is valid?

• Boron is the most reactive because it has the most protons.

• Fluorine is the most reactive because it has 7 electrons in the outer shell.

• Silicon is the most reactive because it has an equal number of protons and neutrons

• Gallium is the most reactive because it has many more neutrons than protons.

Tags

NGSS.MS-PS1-1

The atoms of a certain element each contain 11 protons and 1 valence electron. Which statement correctly identifies this element and describes its chemical reactivity?

• The element is fluorine, and it is not very reactive.

• The element is sodium, and it is not very reactive.

• The element is sodium, and it is highly reactive.

• The element is fluorine, and it is highly reactive.

Which statement best describes the position of the two elements in the periodic table.

• The two elements are in the same period, with Mg the first element in the period table and Ca the last element

• The two elements are in the same group, with Mg just above Ca

• The two elements are side by side in the same period, with Ca to the left of Mg

• The two elements are in the same group, with Ca just below Mg

Tags

NGSS.MS-PS1-1

Based on the data, which number shows the correct location of the element that is malleable, a good conductor and reactive.

• 1

• 2

• 3

• 4

What element has similar properties of Cesium (Cs), but a larger atomic mass?

• Magnesium (Mg)

• Barium (Ba)

• Rubidium (Rb)

• Francium (Fr)

An element is shiny, solid at room temperature, and has two valence electrons. Which of these elements could be in this group?

• Lithium (Li)

• Strontium (Sr)

• Aluminum (Al)

• Silicon (Si)

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?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

The element sulfur (S) is grouped in the Periodic Table with the nonmetals. Based on this, what do you know about sulfur?

• It’s a poor conductor of electricity.

• It’s soft and malleable.

• It has a shiny surface.

A certain element, when pounded with a hammer, doesn’t break apart but forms thin sheets. It also conducts electricity very well. The element is most likely a -

• metal

• nonmetal

• metalloid