Chemistry Quiz

An unknown element has 10 protons. Which one of the following statements is true about the element?

• The element belongs in row 1 of the periodic table and is classified as a noble gas.

• The element belongs in row 2 of the periodic table and is classified as a halogen.

• The element belongs in row 2 of the periodic table and is classified as a noble gas.

• The element belongs in row 3 of the periodic table and is classified as an alkali metal.

Tags

NGSS.HS-PS1-1

The list describes characteristics of four different elements: Element A is a liquid at room temperature. Element B is a solid that does not conduct electricity. Element C is a gas with an effective nuclear charge of +1. Element D is ductile and can be drawn into wires. Based on this list, which elements are metals?

• Elements A and B

• Elements A and D

• Elements B and C

• Elements C and D

Halogens are known for their high ______ because they readily ______ electrons to achieve a stable configuration.

• stability; lose

• reactivity; gain

• inertness; gain

• reactivity; lose

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Arrange the following Group 1 elements in order of increasing atomic size, starting with the smallest:

• Li; Na; K; Rb; Cs

• Cs; Rb; K; Na; Li

• Na; Li; K; Cs; Rb

• Rb; Cs; Na; Li; K

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which list arranges the elements Na, Li, K, Rb, and Cs in order of decreasing ionization energy (from left (highest) to right (lowest))?

• Cs; Rb; K; Na; Li

• Cs; Li; Na; K; Rb

• Na; Li; K; Rb; Cs

• Li; Na; K; Rb; Cs

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

With the exception of He, how many valence electrons do noble gases have?

• 3

• 4

• 6

• 8

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Beryllium is in Group 2A, Period 2 of the periodic table. Which statement describes the charge of the ion it typically forms?

• It forms a cation with +2 charge.

• It forms a cation with a +1 charge.

• It forms an anion with a -2 charge.

• It forms an anion with a -1 charge.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Consider the elements Rb, Sr, Te, Xe, and In, which are all found in Period 5 of the Periodic Table. Which sequence, from left to right, arranges them by atomic size, from largest to smallest?

• Rb; Sr; Te; Xe; In

• Sr; In; Rb; Xe; Te

• Rb; Xe; Te; Sr; In

• Rb; Sr; In; Te; Xe

Which element has 2 energy levels and is a noble gas?

• He

• Ne

• Ar

• Kr

Tags

NGSS.HS-PS1-1

Which element from the list has the highest electronegativity and the largest atomic radius?

• F

• Cs

• O

• Mg

• Rn

Tags

NGSS.HS-PS1-1