Year 9 Triple Chemistry Ions and Ionic Bonding

What is an ion?

• A neutral particle

• A charged particle

• A particle with no electrons

• A particle with only protons

What happens when an atom loses an electron?

• It becomes negatively charged

• It becomes positively charged

• It remains neutral

• It becomes a neutron

Ions are called (a)   when an atom loses an electron.

• Anions
• Neutrons
• Cations
• Electrons

Ava is learning about the periodic table in her chemistry class. She wants to know how many electrons group 1 elements have in their outer shell. Can you help her?

• 1

• 2

• 3

• 4

What is an anion?

• A positively charged ion

• A negatively charged ion formed when atoms gain electrons

• A neutral atom

• A molecule with no charge

The structure of a Nickel atom changes when it forms a Nickel ion, Ni²⁺, by (a)   .

• It gains two electrons
• It loses two electrons
• It gains two protons
• It loses two protons

Scarlett is learning about ions in her chemistry class. What are the two steps she should follow to calculate the PEN of ions?

• Calculate the PEN of the atom; Look at the charge of the ion and adjust electrons

• Calculate the mass of the atom; Determine the number of protons

• Identify the element; Measure the atomic radius

• Find the atomic number; Subtract the number of neutrons

What are the two steps involved in calculating the PEN of ions?

• Calculate the PEN of the atom; Look at the charge of the ion and adjust electrons

• Calculate the mass of the atom; Determine the number of protons

• Identify the element; Measure the atomic radius

• Determine the atomic number; Find the ionization energy

Arthur is studying ions in his chemistry class. When calculating the PEN of a K⁺ ion, what does the "+" indicate?

• The ion has lost an electron

• The ion has gained a proton

• The ion has gained an electron

• The ion has lost a proton

Chloe is studying ions in her chemistry class. She needs to identify which line in the table shows the correct numbers of protons, neutrons, and electrons in a positively charged magnesium ion. Can you help her?

• 10 protons, 12 neutrons, 12 electrons

• 10 protons, 12 neutrons, 10 electrons

• 12 protons, 10 neutrons, 12 electrons

• 12 protons, 12 neutrons, 10 electrons