Grade 6 Chemistry 2023 VA

What is the atomic number of boron?

• 5
• 10.811

Which of these is the electron?

• A
• B
• C

Which of these is the proton?

• A
• B
• C

Which of the following is NOT a type of subatomic particle?

• plasmids
• proton
• neutron
• electron

Match the following

• is to give the atom its identity.

• The job of the proton...

• is bonding and reactivity.

• The job of the electron...

• is to hold together the nucleus

• The job of the neutron...

Match the particle with its charge.

• negative

• proton

• positive

• electron

• neutral

• neutron

The positive particles of an atom are called...

• Electrons

• Neutrons

• Protons

The dense center of an atom, where neutrons and protons are located, is called the...

• nucleus

• electron cloud

• center

How many protons are in a boron atom?

• 5

• 10.811

Where are electrons located in an atom?

• nucleus

• electron shell