Which of the following is the correct order for largest to smallest radius of the following: K + , Ca +2 , Ga +3 , As -3 , Se -2 , Br -1 , Kr

As -3 > Se -2 > Br -1 > Kr > K +1 > Ca +2 > Ga +3

K +1 > Ca +2 > Ga +3 > As -3 > Se -2 > Br -1 > Kr

Kr > Br -1 > Se -2 > As -3 > Ga +3 > Ca +2 > K +

Ga +3 > Ca +2 > K +1 > Kr > Br -1 > Se -2 > As -3

Why is letter b the incorrect orbital configuration for Boron?

One of the orbitals has 2 electrons pointing up/ positive spin (and this is a violation of Pauli Exclusion Principle)

It has the incorrect number of electrons

Electrons will not pair up until each orbital in a subshell has one electron (Hund's Rule)

Some of the orbitals only have 1 electron

Electrons will always pair up in the orbitals

Why is the following an incorrect orbital configuration for carbon?

According to Hund’s Rule, electrons in the same subshell (sub energy level) will spread out due to electron repulsions

It has the incorrect number of electrons

Carbon’s electron configuration is not 1s²2s²2p²

The 1s should only have 1 electron

The correct ground state electron configuration for Nickel is: (write the configuration and match it up. They do NOT need to be in the same exact order)

1s²2s²2p⁶3s²3p⁶3d⁸4s²

Which element has a higher ionization energy, Mg or P? Why?

P, it has more protons and a more effective nuclear charge. This requires more energy to remove an electron

Mg, it has more energy levels and a larger radius. Therefore more energy is required to remove an electron

P, it has more energy levels and a larger radius. Therefore more energy is required to remove an electron

Mg, it has more protons and a more effective nuclear charge. This requires more energy to remove an electron

They both have the same ionization energy

Which element has a lower electronegativity, Na or Cs? Why?

Cs, it has more energy levels and a larger radius. This results in Cs less able to attract an electron

Na, it has more energy levels and a larger radius. This results in Na less able to attract an electron

Na, it has more protons (with similar shielding) and a more effective nuclear charge

Cs, it has more protons (with similar shielding) and a more effective nuclear charge

They both have the same ionization energy

Honors Practice

Authored by Mrs. Corey

Science

6th Grade

NGSS covered

Used 5+ times

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DRAG AND DROP QUESTION

10 mins • 1 pt

Most of the elements on the periodic table are (a) .

metals

nonmetals

metalloids

DROPDOWN QUESTION

10 mins • 1 pt

Argon is a(n) (a) .

alkali metal

alkaline earth metal

halogen

noble gas

The following describes metals:

dull appearance

shiny or lustrous appearance

brittle

poor conductivity

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

This pair of elements has the most similar chemical properties:

C and K

Na and P

P and Cl

Na and K

This atom has the smallest radius.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

This element is located in the 4th period

This element is a metalloid

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Honors Practice

Most of the elements on the periodic table are (a) .

Argon is a(n) (a) .

The following describes metals:

This pair of elements has the most similar chemical properties:

This atom has the smallest radius.

This element is located in the 4th period

This element is a metalloid

This element is a halogen

Which of the following is a metalloid?

Which is the halogen?

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