Chem 1 Review & Some

The particles with no charge in an atom are the _______.

• electrons
• neutrons
• protons
• protons and neutrons

Tags

NGSS.MS-PS1-1

A model of a beryllium atom is shown below. What type of particles are found in the cloud surrounding the atom's nucleus?

• Positively charge particles and negatively charge particles

• negatively charged particles only

• neutral particles and positively charge particles

• positively charge particles only

Tags

NGSS.MS-PS1-1

What subatomic particles would you find in the nucleus of an atom?

• Protons only
• Protons and Neutrons
• Neutrons and Electrons
• Protons and Electrons 

If an atom has 10 protons, 10 neutrons, and 10 electrons, what is the mass of the atom?

• 10
• 20
• 30

In the picture, what is the atomic number for Sodium?

• 11
• 22.9
• Na
• none of the above

The atomic number tells us

• the number of neutrons
• the number of protons
• the number of protons + neutrons
• the number of isotopes

Which of the following descriptions best fits the definition of an atom? 

• An atom has two subatomic particles, which consist of positive protons and negative electrons grouped together in a random pattern. 
• An atom has two subatomic particles which consist of negative protons and negative electrons grouped together in an alternating pattern. 
• An atom has three subatomic particles, which consist of a core of positive protons and neutral neutrons surrounded by negative electrons. 
• An atom has three subatomic particles, which consist of a core of negative protons and positive electrons surrounded by neutral neutrons. 

Tags

NGSS.MS-PS1-1

How many neutrons in Boron?

• 5
• 6
• 10
• 11

Tags

NGSS.MS-PS1-1

How many protons in Krypton?

• 36
• 48
• 83
• 84

Tags

NGSS.HS-PS1-1

A NEUTRAL atom has the same number of - 

• protons & neutrons
• protons & electrons
• neutrons & electrons