Ions and Isotopes Review

Ions are: 

• atoms with a positive or negative charge
• atoms with no charge
• atoms with ONLY a positive charge
• atoms with ONLY a negative charge

Which of the following represents an ION?

• Na

• Cl

• Na¹⁺

• Cl-18

What charge does an atom have if it GAINS an electrons?

• Positive (+)
• Negative (-)

Negative ions are called

• Cations
• Electrons
• Anions
• Neutrons

What charge does an atom have if it LOSES an electron? 

• Positive (+)
• Negative (-)

Positive ions are called

• cations

• anions

• electrons

• neutrons

If you have 10 protons and 9 neutrons, what would the mass number be?

• 19
• 9
• 10
• 1

What is the definition of isotope?

• atoms of an element with different numbers of neutrons than protons.

• materials break down over time at a very consistent rate

What do these isotopes of carbon all have in common?

• neutrons & mass number

• Neutrons and electrons

• protons and electrons

• protons, neutrons, and mass number

Tags

NGSS.MS-PS1-1

Which of the following represents an ISOTOPE?

• Na

• Cl

• Na¹⁺

• Cl-18