Neutral Isotope Ion

1. To change Li to Li⁺, you need to:

• add one electron
• remove one electron
• remove one proton
• add one neutron

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

2. Fe²⁺ and Fe³⁺ are different iron:

• ions
• elements
• isotopes
• atoms

3. ¹⁴₆C and ¹²₆C are examples of carbon:

• ions
• isotopes
• molecules
• valences

⁴₆C has how many protons?

• 6
• 14
• 12
• 20

5. Li⁺ and Cu²⁺ are examples of:

• anions
• isotopes
• cations
• molecules

What is the symbol for an ion which has 8 protons and 10 electrons?

• N³⁻
• O²⁻
• F⁻
• O³⁻

7. What is the nuclear symbol for the isotope of oxygen which has 9 neutrons?

• ¹⁶₈O
• ¹⁷₈O
• ¹⁸₈O
• ¹⁸₉O
  

Tags

NGSS.HS-PS1-8

8. Li⁺ has how many electrons? (hint: the atomic number of lithium is 3)

• 0
• 1
• 2
• 3

Tags

NGSS.HS-PS1-1

9. How many protons, neutrons, and electrons does ⁷₄Be²⁺ have?

• 4,3,2
• 4,3,6
• 4,3,4
• 4,6,3

10. N³⁻ has:

• 7 protons and 4 electrons
  
• 7 protons and 10 electrons
• 7 protons and 11 electrons
• 7 protons and 12 electrons

Tags

NGSS.HS-PS1-1