Periodic Table and Atomic Structure

What scientist used the planetary model to explain how the electrons circled the nucleus?

Which of the following is considered an alkali metal?

If a nitrogen atom has 8 neutrons, what would it's mass number be?

The atomic mass of an atom is equal to?

What group is Sodium (Na) in?

The atomic number of Potassium is 19, the mass is 39, how many neutrons does it have?

Scientists have broken down protons and neutrons into smaller particles called?

What is the name of the group that chlorine is in?

Which atom is most likely to have an isotope with a mass of 19?

The atomic number is equal to?

How many valence electrons would sodium want to gain/lose to fill its outer shell?

The ___________ is a chart created by scientist to organize elements according to properties

If an atom has seven protons and seven electrons, what would it's charge be?

How did Mendeleev make predictions about elements that had yet to be discovered?

Which of the following is a liquid at room temperature?

Which element has an atomic number of 15?

Which of the following particles are electrically neutral?

Atoms consist of a positively charged center called a ___________

In the 19th century, who was the first to offer proof that the atom existed?

If two atoms of the same element have different masses, it is caused by?

Mendeleev's work was accepted by the scientific community after the discovery of which element?

Which scientist is credited with developing the current model of the periodic table?

Which of the following would be most effective in describing atoms?

The negatively charged particles circling the nucleus of the atom are called _________

Atoms of the same element that have different masses are called?

Which scientist was responsible for finding a dense, positively charged nucleus?

How many valence electrons does a carbon atom have?

Aluminum has what atomic number?

Which model represents the unpredictable motion of electrons?

Which 3 categories best describes the 3 general groups of elements?

Which scientist was responsible for providing evidence that electrons existed?

Which group of atoms has a full outer shell of valence electrons?

The mass of electrons in an atom are?