Periodic Trends

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

• The atoms have more mass.

• The atoms have more protons.

• The atoms have more energy levels

• The atoms have more nuetrons

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.

Which atom has the largest atomic radius?

• potassium

• rubidium

• francium

• cesium

The atom with the largest atomic radius in Group 18 is

• Ar

• He

• Kr

• Rn

Which periodic group has the smallest atomic radius?

• Alkali metals
• Halogens
• Noble Gases
• Transition metals

Tags

NGSS.HS-PS1-1

Ionization energy is...

• the energy required to add an electron to a specific atom
• how much energy it takes to remove an electron from an atom
• the energy required to shield the outer electrons from the nucleus
• a measure of the ability of an atom to attract electrons

Tags

NGSS.HS-PS1-2

Which of the following will have a lower ionization energy than scandium (Sc)?

• helium (He)

• titanium (Ti)

• calcium (Ca)

• magnesium (Mg)

Which of the following will have a higher ionization energy than arsenic (As)?

• gallium (Ga)

• neon (Ne)

• antimony (Sb)

• germanium (Ge)

Atoms that have a high electronegativity, _______________.

• give up their electrons more easily.
• hold on to their electrons more tightly.
• have more electron shells.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following will have a higher electronegativity than arsenic (As)?

• Carbon (C)

• Neon (Ne)

• Antimony (Sb)

• Germanium (Ge)