Test Review #4 -Periodic Table

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

• atomic number

• mass number

• oxidation state

• valence electrons

In which set do the elements have the most similar chemical properties?

• N, O, F

• Li, Na, K

• Hg, Br, Rn

• Al, Si, P

Tags

NGSS.HS-PS1-1

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

• Rb, Cl, Ne

• Sr, Si, Rn

• Rn, Cl, Ne

• Si, Rb, Sr

Tags

NGSS.HS-PS1-1

Which of the following is the correct electron-dot diagram for an atom with an electron configuration of 2-8-18-5?

• 
• 
• 
• 

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

Which ion has the same electron configuration as an H^- ion?

• Cl^-

• F^-

• K⁺

• Li⁺

Tags

NGSS.HS-PS1-1

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

What is the net charge of an ion that has 15 protons, 16 neutrons, and 18 electrons?

• 2+

• 2-

• 3+

• 3-

Which change occurs when a barium atom loses two electrons?

• It becomes a negative ion and its radius decreases

• It becomes a negative ions and its radius increases

• It becomes a positive ion and its radius decreases

• It becomes a positive ion and its radius increases

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2