Bases and bubbes

What is a proton?

• An uncharged particle found in the nucleus of the atom

• A negatively charged particle found moving about the nucleus of the atom

• A positively charged particle found in the nucleus of the atom

• A negatively charged particle that is found in the nucleus of the atom

What is an acid?

• A substance that turns blue in universal indicator

• A substance that donates hydrogen ions

• A substance that forms hydroxide ions

• A substance that accepts hydrogen ions

What does the 'mass number' mean?

• The number of neutrons and electrons in the atom.

• The number of protons in the atom

• The number of protons and neutrons in the atom

• The number of protons and electrons in the atom.

What is a compound?

• A substance made of different types of atoms that are joined or bonded together

• A substance made of one type of atom

• A substance made of different types of atoms that are not joined or bonded together.

• A substance made of different metals that are joined or bonded together.

What does the term malleable mean?

• Malleable means that a substance will let heat travel through them without melting them.

• Malleable means that a substance can be stretched into a wire without breaking

• Malleable means that a substance will let electricity travel through them easily.

• Malleable means that a substance can be hammered into a flat sheet without breaking.

What is an alkali?

• A substance that donates hydrogen ions

• A substance that will turn universal indicator red.

• A substance that will dissolve in water and has pH greater than 7.

• A substance that will neutralise a base.

What does the term ductile mean?

• Ductile means that a substance can conduct electricity

• Ductile means that a substance can be shined

• Ductile means that a substance can be stretched into a wire without breaking

• Ductile means that a substance can be hammered into a flat sheet without breaking.

What is an element?

• A substance made of more than one type of atom.

• A substance made on one type of atom.

• A substance made of different metal atoms joined together

• A substance made of metal and non-metal atoms

What does the atomic number refer to?

• The number of protons and neutrons in an atom.

• The number of electrons in an atom.

• The number of protons in an atom

• The number of neutrons in an atom.

What is a base?

• A substance that changes blue litmus red.

• A substance that changes red litmus blue.

• A substance that has a pH equal to 7

• A substance that will neutralise an alkali.