Periodic Table - Intro & Ox. States

The table shows the physical and chemical properties of two elements. Element X belongs in Group 17. Will Element X form a bond with Element B?

• Element X will form a bond with Element B because they are in the same Group of the Periodic Table and will share the electron in their outer shell.

• Element X will form a bond with Element B because Element B is in Group 1 and will receive an electron from the outer shell of Element X.

• Element X will form a bond with Element B because Element B is in Group 1 and will donate an electron to the outer shell of Element X.

• Element X will not form a bond with Element B because they are in the same Group of the Periodic Table.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which particle model diagram represents a noble gas at STP?

• 
• 
• 
• 

Tags

NGSS.HS-PS1-1

At STP, which property can be used to differentiate one-mole samples of Cl₂(g) and Kr(g)?

• phase

• pressure

• chemical reactivity

• temperature

An element that is a very reactive metal could have an atomic number of

• 9

• 2

• 19

• 79

Tags

NGSS.HS-PS1-1

Which list correctly categorizes the elements C, Kr, and Cu?

• Metal: Cu, Nonmetal: C, Noble Gas: Kr

• Metal: Kr, Nonmetal: C, Noble Gas: Cu

• Metal: C, Nonmetal: Kr, Noble Gas: Cu

• Metal: C, Nonmetal: Cu, Noble Gas: Kr

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which element has chemical properties most similar to sodium?

• magnesium

• oxygen

• phosphorus

• rubidium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Magnesium and calcium have similar chemical properties because their atoms in the ground state have

• equal numbers of protons and electrons

• equal numbers of protons and neutrons

• two electrons in the first shell

• two electrons in the outermost shell

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which element is malleable at STP?

• chlorine

• copper

• helium

• sulfur

At STP, graphite and diamond are two solid forms of carbon. Which statement explains why these two forms of carbon differ in hardness?

• Graphite and diamond have different ionic radii.

• Graphite and diamond have different molecular structures.

• Graphite is a metal, but diamond is a nonmetal.

• Graphite is a good conductor of electricity, but diamond is a poor conductor of electricity.

Tags

NGSS.HS-PS1-3

NGSS.HS-PS2-6

Which element is least likely to undergo a chemical reaction?

• lithium

• carbon

• fluorine

• neon