Atom Review

• 2
• 8
• 3
• 13

Valence electrons are the...

• Innermost electrons
• Middle electrons
• Outermost electrons
• Any electrons

USE THE PERIODIC TABLE

How many valence electrons does sodium have?

• 1

• 2

• 3

• 4

Elements in the same column of the periodic table always have the same # of _______ as one another.

• Protons
• Neutrons
• Electrons
• Valence Electrons

What are the basic building blocks of all matter?

• Elements

• Isotopes

• Atoms

• Cells

Which of these IS found in the nucleus?

• proton

• neutron

• electron

• protons and neutrons

Which of these has a positive charge?

• proton

• neutron

• electron

• protons and neutrons

Which of these has a negative charge?

• proton

• neutron

• electron

• protons and neutrons

Which of these has a neutral charge?

• proton

• neutron

• electron

• protons and neutrons

What property determines if an atom is identified as Flourine?

• it has 10 neutrons

• it has an atomic mass of 19

• it has 9 protons

• Its element symbol is Fl.