8.P.1.2

The table shows properties of several elements. Which element would Element X most likely be grouped with on the periodic table?

• potassium
• calcium
• chlorine
• copper

This table shows the solubility of various substances in water. Which term best describes the role of temperature as it relates to solubility in the chart?

• constant
• standard
• dependent variable
• independent variable

Tags

NGSS.MS-PS1-4

The physical properties of element X are shown in the table below. Which most likely represents the identity of element X?

• copper (Cu)
• carbon (C)
• iodine (I)
• sulfur (S)

Tags

NGSS.MS-PS1-2

Which characteristic of an element determines its placement in the periodic table?

• number of protons
• mass
• size
• number of neutrons

Which statement best explains how the periodic table is organized?

• increasing atomic number from left to right
• increasing number of neutrons from left to right
• decreasing number of electrons from left to right
• decreasing atomic mass number from left to right

Which statement best explains how periods on the periodic table are organized?

• increasing atomic number from left to right
• increasing number of neutrons from left to right
• decreasing number of electrons from left to right
• decreasing atomic mass number from left to right

Which pair of elements has the most similar properties?

• N and P
• Li and B
• I and Ca
• K and He

Sodium reacts with water. Which element is most likely to have a similar effect to sodium if it is exposed to water?

• lithium
• carbon
• oxygen
• neon

Which element will most likely gain electrons?

• Cl
• Na
• Ne
• none of these

Where on the periodic table are you most likely to find elements that do not react with other elements?

• group 18
• group 1
• group 17
• group 2