Test Review #4 -Periodic Table

The elements on the periodic table are arranged in order of increasing

• atomic number

• mass number

• number of isotopes

• valence electrons

Which list includes elements with the most similar chemical properties?

• Br, Ga, Hg

• Cr, Pb, Xe

• O, S, Se

• N, O, F

Tags

NGSS.HS-PS1-1

Which list of elements contains a metal, a metalloid, a nonmetal, and a noble gas?

• Be, Si, Cl, Kr

• C, N, Ne, Ar

• K, Fe, B, F

• Na, Zn, As, Sb

Tags

NGSS.HS-PS1-1

Which Lewis electron-dot diagram is drawn correctly for the atom it represents?

• 
• 
• 
• 

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Elements that have atoms with stable valence electron configurations in the ground state are found in

• Group 1

• Group 8

• Group 11

• Group 18

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Magnesium and Calcium have similar chemical properties because a Magnesium atom and a Calcium atom have the same

• atomic number

• mass number

• total number of electron shells

• total number of valence electrons

Tags

NGSS.HS-PS1-1

How many electrons are contained in an Au³⁺ ion?

• 76

• 79

• 82

• 197

Compared to a rubidium atom, an Rb⁺ ion has

• one more electron and a larger radius

• one more electron and a smaller radius

• one fewer electron and a larger radius

• one fewer electron and a smaller radius

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

An atom with the electron configuration 2-8-6 would most likely

• decrease in size as it forms a positive ion

• increase in size as it forms a positive ion

• decrease in size as it forms a negative ion

• increase in size as it forms a negative ion

Which two characteristics are associated with metals?

• low ionization energy and low electronegativity

• low ionization energy and high electronegativity

• high ionization energy and high electronegativity

• high ionization energy and low electronegativity