Atoms, Elements, & the Periodic Table

How many protons does potassium have?

As you move from left to right across a period, what happens to the elements?

Which of the following is the smallest particle?

_______ are the most common element in the periodic table.

Which letter is pointing to an electron?

Which elements have properties of both metals and nonmetals?

Which element is located in group 2, period 5?

What are the metals in groups 3-12 called?

What kind of element has the same number of protons and a different number of neutrons?

Positively charged particle.

Which group contains very reactive nonmetals?

The electrons are located here.

Which group contains nonreactive nonmetals?

Which letter is pointing to the nucleus?

Neutral particle.

Atomic mass - atomic number = ___________?

What are the horizontal rows in the periodic table called?

Negatively charged particle.

What are the vertical columns in the periodic table called?

These elements are good conductors of heat and electricity.