Y11 C3 Atoms, Elements & Compounds Pt.1

Which sub-atomic particle in an atom is POSITIVELY charged?

• Proton

• Neutron

• Electron

• Orbit

Which sub-atomic particle in an atom is NEGATIVELY charged?

• Proton

• Neutron

• Electron

• Nucleus

Which sub-atomic particle in an atom has NO CHARGE?

• Proton

• Neutron

• Electron

• Nucleus

What is the name of any substance made up of the same type of atom?

• Molecule

• Proton

• Element

• Atom

Hydrogen is a pure substance represented by the chemical symbol H. Which of the following best describes hydrogen?

• Hydrogen is an element made of two or more kinds of atoms.
• Hydrogen is a compound made of only one kind of atom.
• Hydrogen is a compound made of two or more kinds of atoms.
• Hydrogen is an element made of only one kind of atom.

Carbon (C) and hydrogen (H) are pure substances. Each is made of only one type of atom, but carbon atoms are different from hydrogen atoms. Carbon and hydrogen chemically combine to form methane (CH₄).

• Methane is an element and carbon and hydrogen are compounds.

• Carbon, hydrogen, and methane are all elements.

• Carbon, hydrogen, and methane are all compounds.

• Carbon and hydrogen are elements and methane is a compound.

What is a compound?

• An atom with more electrons than protons

• A substance in which the atoms of two or more elements are chemically combined

• An atom with more neutrons than protons

• A substance in which the atoms of three or more elements are mixed together

Where are protons and neutrons located?

• The nucleus

• The electron cloud

• The valence shell

Which part of the atom is responsible for determining an atom's chemical properties?

• All of the electrons

• Protons

• Neutrons

• The valence electrons

An element with a mass number of 10 and an atomic number of 10 has how many protons?

• 5

• 8

• 6

• 10