Hebden atomic identity, ions and isotope tables
Use this alongside Hebden atomic identity, ions and isotope tables. Assigned references: p.146 #13–17, p.147 #19, p.149 #22.
Three counts, three different questions
Atomic number Z is the proton count. For a neutral atom electrons equal Z; an ion’s charge is protons minus electrons. Mass number A is protons plus neutrons. Nuclear charge is +Ze, independent of the electron count.
p.146 · Assigned particle questions
- 13a
For Be, find the number of protons.
Walk through - 13b
For U, find the number of protons.
Walk through - 13c
For Mn, find the number of protons.
Walk through - 14a
For C, find the number of electrons in the neutral atom.
Walk through - 14b
For Fe, find the number of electrons in the neutral atom.
Walk through - 14c
For Ar, find the number of electrons in the neutral atom.
Walk through - 15a
For Na⁺, find the number of electrons in the ion.
Walk through - 15b
For Mg²⁺, find the number of electrons in the ion.
Walk through - 15c
For V³⁺, find the number of electrons in the ion.
Walk through - 15d
For O²⁻, find the number of electrons in the ion.
Walk through - 15e
For Cl⁻, find the number of electrons in the ion.
Walk through - 15f
For Al³⁺, find the number of electrons in the ion.
Walk through - 15g
For Sb³⁻, find the number of electrons in the ion.
Walk through - 15h
For Fe²⁺, find the number of electrons in the ion.
Walk through - 15i
For H⁻, find the number of electrons in the ion.
Walk through - 15j
For As³⁻, find the number of electrons in the ion.
Walk through - 17a
For Mg, enter the positive nuclear charge as a multiple of e (for example, 6 means +6e).
Walk through - 17b
For Ne, enter the positive nuclear charge as a multiple of e (for example, 6 means +6e).
Walk through - 17c
For K⁺, enter the positive nuclear charge as a multiple of e (for example, 6 means +6e).
Walk through - 17d
For S²⁻, enter the positive nuclear charge as a multiple of e (for example, 6 means +6e).
Walk through
p.146 · Changing an ion
- 16a
S gains two electrons. Write the new ion.
Walk through - 16b
Ca loses two electrons. Write the new ion.
Walk through - 16c
Cl gains one electron. Write the new ion.
Walk through - 16d
Al loses three electrons. Write the new ion.
Walk through - 16e
Cr³⁺ gains one electron. Write the new ion.
Walk through - 16f
Mn²⁺ loses two electrons. Write the new ion.
Walk through - 16g
V⁴⁺ loses one electron. Write the new ion.
Walk through - 16h
Sb⁻ gains two electrons. Write the new ion.
Walk through - 16i
O²⁻ loses one electron. Write the new ion.
Walk through
p.147 · Table
- 19
Complete the isotope/ion table for p.147 #19 on the original.
Walk through
p.149 · Table
- 22
Complete the isotope/ion table for p.149 #22 on the original.
Walk through