Periodic Trends

Front

Which element in Period 2 has the greatest atomic radius? Options: Be, C, Na, Li

Back

Li

Front

Of the halogens, which has the smallest radius? Options: F, Br, He, At

Back

F

Front

As you move across the periodic table from left to right, the atomic radius decreases. Why?

Back

the number of protons increases, so attraction to electrons increases

Front

Ionization energy is...

Back

how much energy it takes to remove an electron from an atom

Front

Electronegativity __________ from left to right within a period and __________ from top to bottom within a group.

Back

increases, decreases

Front

Which of the following will have a lower ionization energy than Scandium (Sc)? Options: Helium (He), Titanium (Ti), Calcium (Ca), Magnesium (Mg)

Back

Calcium (Ca)

Front

Which of the following will have a higher electronegativity than arsenic (As)? Options: Carbon (C), Neon (Ne), Antimony (Sb), Germanium (Ge)

Back

Carbon (C)

Front

In the modern periodic table, elements are arranged by: atomic mass, atomic number, valence electrons, number of isotopes

Back

atomic number

Front

Which of these is a property of metals?

Back

It's malleable

Front

What is a cation's charge?

Back

positive