6.2 PERIODICITY-ATOMIC/IONIC RADII

As you move down the periodic table atoms get bigger. This is because ____________.

• The atoms have more effective nuclear charge.

• The atoms have more protons.

• The atoms have more energy levels

• The atoms have more neutrons

As you move across the periodic table atoms tend to get smaller because, ______________.

• the atoms have more mass.
• the atoms have less mass
• the atoms have more protons.
• the atoms have less electrons.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following will have a larger radius than Zinc?

• Gallium
• Aluminum
• Magnesium
• Strontium

Tags

NGSS.HS-PS1-1

The more protons there are, the ____ .

• Weaker the attraction

• Smaller the electrons

• Stronger the attraction

• bigger the electrons

Which one has the largest radius?

• Lithium (Li, atomic no 3)

• Boron (B, atomic no 5)

• Neon (Ne, atomic no 10)

• Nitrogen (N, atomic no 7)

Which of the following elements would be the largest: potassium (Ar = 19), zinc(Ar = 30), bromine(Ar = 35) or rubidium(Ar = 37)?

• rubidium

• zinc

• bromine

• potassium

Why is iodine larger than bromine?

• iodine has a greater number of electrons than bromine

• iodine has a greater number of protons than bromine

• iodine has more occupied energy levels and greater shielding than bromine

• iodine has more neutrons than bromine

The diameter of an atom is also the distance between  _____ .

• The total length of two atoms
• The centers of two atoms
• An electron to a proton
• Two neutrons

Tags

NGSS.MS-PS1-1

When you move left across the table, the radius ____. When you move down the table, the radius ____.

• Increases, Decreases
• Decreases, Increases
• Increases, Increases
• Decreases, Decreases

As you go down the Periodic Table, the ______ increases.

• Principle Quantum Number

• Effective nuclear charge

• proton repulsion

• Intermolecular forces