Chemistry 8.5

What number indicates the nucleus?

• 1
• 2
• 3
• 4

Where is most of the mass in an atom located?

• in the nucleus
• in the protons
• in the neutrons
• in the electrons

Tags

NGSS.MS-PS1-1

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

• electrons
• neutrons
• protons
• protons and neutrons

 What is the mass number of this element?

• 5
• 27
• 32
• 59

Tags

NGSS.MS-PS1-1

The negatively charged particles of an atom are the ______.

• electrons
• protons
• neutrons
• protons & neutrons

What is the mass number?

• the number of protons
• the sum of the number of protons and the number of neutrons in the nucleus of an atom 
• the number of electrons
• the number of neutrons

Tags

NGSS.HS-PS1-8

a neutron has this charge

• negative
• positive
• neutral

Which statement accurately describe the atoms of a specific element?

• An oxygen, O, atom contains 8 electrons inside the nucleus and 8 neutrons outside the nucleus.

• A neon, Ne, atom contains 10 electrons outside the nucleus and 10 protons inside the nucleus.

• An oxygen, O, atom contains 8 protons inside the nucleus and 16 neutrons inside the nucleus.

• A neon, Ne, atom contains 10 electrons outside the nucleus and 20 protons inside the nucleus.

Tags

NGSS.MS-PS1-1

How many protons, electrons and neutrons are present in an atom of carbon, C, with the mass of 12?

• 12 protons, 12 electrons, 12 neutrons

• 6 protons, 12 electrons, 6 neutrons

• 12 protons, 6 electrons, 12 neutrons

• 6 protons, 6 electrons, 6 neutrons

Tags

NGSS.MS-PS1-1

How many valence electrons are in the outer shell of Chlorine (Cl)?

• 1
• 3
• 6
• 7