Atomic structure and the periodic table

Identify the number of p⁺, e^- and n⁰ respectively, based on the nuclear symbol ⁹₄Be

• 4, 5, 5

• 4, 4, 4

• 4, 4, 5

• 4, 5, 4

What is the number of p⁺, e^- and n⁰ respectively, based on the nuclear symbol ²⁴₁₂Mg⁺²?

• 12, 12, 12

• 12, 10, 12

• 12, 14, 12

• 12, 12, 24

Tags

NGSS.HS-PS1-8

Identify the correct nuclear symbol for cobalt

• ⁵⁰₂₇Co

• ²⁷₅₉Co

• ¹¹²₆C

• ⁵⁹₂₇Co

Tags

NGSS.HS-PS1-8

Identify the correct element based on the full electron configuration:

1s²2s²2p⁶3s²3p⁶4s²3d³

• niobium

• vandium

• phosphorus

• titanium

Identify the correct element based on the condensed electron configuration:

[Ar]4s²3d¹⁰4p³

• arsenic

• argon

• calcium

• zinc

n⁰ = atomic mass - Z

is the formula to calculate neutrons for what type of atom?

• neutral atom

• ion

• cation

• isotope

To calculate the number of e- in an ion which formula should be used?

• e^- = Z

• e^- = Z - ionic charge

• e^- = Z + ionic charge

• e^- = A

Identify how many orbitals are present in each electron sublevel

• s 1, p 3, d 5, f 7

• s 2, p 6, d 10, f 14

• s 2, p 8, d 18, f 32

• s 1, p 6, d, 8, f 18

What is the condensed electron configuration for Arsenic?

• [Ne]4s²3d¹⁰4p³

• [Ne]3s²3p⁶4s²3d¹⁰4p³

• [Ar]4s²3d¹⁰4p³

• [Ar]4s²3d⁴

Which two of the first 36 elements are exceptions to the Aufbau principle?

• Cr and Co

• Cr and Mo

• Cr and Cu

• Cr and Ag