Atom and Periodic Table review

What is the definition of Group?

• A table of the chemical elements arranged by atomic number

• All elements in a row that have the same number of electron shells (energy levels)

• Model that represents valence electrons

• Set of elements occupying a column in the periodic table and having broadly similar properties due to similar electon structure.

What is the atomic Mass of Copper?

• 64

• 29

• 23

• 63

Tags

NGSS.MS-PS1-1

How many neutrons does an atom of Iron contain?

• 55.847

• 26

• 30

• 56

Tags

NGSS.MS-PS1-1

How many electrons does a balanced atom of oxygen contain?

• 8

• 16

• 0

• 15.9994

Tags

NGSS.MS-PS1-1

What is the atomic number of aluminum? What does this number represent?

• 17, number of neutrons

• 13, number of neutrons

• 13, number of protons OR electrons

• 27, number of neutrons + protons

Tags

NGSS.MS-PS1-1

What is the charge on a lithium atom that loses 1 electron?

• +1

• 0

• -1

• -2

Is the element shown in this image an ion, isotope or normal atom?

• atom
• isotope
• cation (+ ion)
• anion (- ion)

Tags

NGSS.MS-PS1-1

The atomic mass is equal to _.

• the number of protons only
• the number of neutrons only
• the total number of protons and neutrons
• the number of protons, neutrons, and electrons.

Which atom has  4 neutrons?

• Li-6
• Li-7
• Li-8
• they have the same # of neutrons

Tags

NGSS.MS-PS1-1

Sodium (Na) and potassium (K) are in the same group on the periodic table. Based on their locations, which statement about sodium and potassium is true?

• Sodium is less electronegative than potassium. 
• Sodium has fewer energy levels than potassium. 
• Sodium has a larger ionic radius than potassium. 
• Sodium has lower ionization energy than potassium. 

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2