Atoms and Molecules Practice

Which atom below would most likely form a chemical bond with the above illustrated element?

• 
• 
• 
• None - the atom above has a full orbital and therefore does not need to share electrons with another atom.

Tags

NGSS.MS-PS1-1

State the number of electrons, protons and neutrons in this element.

• 36 Electrons, 36 Protons and 47 Neutrons.

• 36 Electrons, 48 Protons and 36 Neutrons.

• 36 Electrons, 36 Protons and 48 Neutrons.

• 47 Electrons, 36 Protons and 36 Neutrons.

Tags

NGSS.MS-PS1-1

How many atoms are in TWO H2O molecules?

• 2

• 4

• 6

• 8

Tags

NGSS.MS-PS1-1

How would O2 be qualified. Check all answers that apply.

• Atom

• Molecule

• Compound

Tags

NGSS.MS-PS1-1

What does the atomic number represent?

• how many atoms are in a group.

• how much an atom weighs.

• the number of protons in the nucleus of the atom.

Substances that have only one kind of atom are called:

• nitrogen

• nucleus

• elements

• electrons

In covalent bonding, valence electrons are ______.

• Shared

• Transferd

• Destroyed

Which one of these is an ion?

• Na

• H₂O

• Cl₂

• Na⁺

What happens to electrons during ionic bonding?

• They are transferred from one atom to another

• They are shared between the 2 atoms

• Each atom loses an electron

• Each atom takes only one electron each

When does ionic bonding happen?

• Between 2 metal atoms

• Between 2 non-metal atoms

• Between metal and a non-metal atoms

• Between two transition metals