Atoms + Periodic Table

Question 1

What colour are the non-metals in this periodic table?

Answer 1

Yellow

Question 2

What type of element is described below?

• Conducts heat
• Conducts electricity
• Is malleable
• Is ductile
• Is shiny

Answer 2

Metals

Question 3

Is hydrogen a metal, metalloid, or non-metal?

Answer 3

Even though it’s on the left side of the table, it is actually a non-metal. It is a gas at room temperature.

Question 4

Who’s atomic model is this?

Answer 4

JJ Thompson’s. He discovered electrons, and thought they were like blueberries in a muffin - randomly spread out in a positive dough.

Question 5

What charges do electrons, protons and neutrons carry?

Answer 5

electrons have a negative charge

protons have a positive charge

neutrons have no charge

Question 6

What are the 3 subatomic particles?

Answer 6

Electrons, Protons and Neutrons

Question 7

Multiple Choice:

What makes up the mass of an atom?

• electrons + protons
• electrons + neutrons
• protons + neutrons

Answer 7

Protons and neutrons

Question 8

What are the symbols for neutrons, protons and electrons?

Answer 8

P+

E-

N*

Question 9

What does the atomic number represent?

Answer 9

The amount of protons

Question 10

What are the 3 types of radiation?

1. electronic, gamma, and zeta radiation.
2. alpha, beta, and zeta radiation
3. gamma, beta, and alpha radiation

Answer 10

3. gamma, beta, and alpha

Question 11

Which subatomic particle do isotopes usually have more of?

Answer 11

Neutrons

Question 12

Which element is this?

Answer 12

Oxygen, because it has 6 valence electrons. It has a total of 8 electrons, so it would also have 8 protons.

Question 13

Who thought the atom was like a solid sphere?

Answer 13

Dalton thought the atom was solide like a bowling ball.

Question 14

What were Rutherford’s 3 discoveries from the gold foil experiment?

Answer 14

1. Atom is made of mostly empty space
2. There is a small, dense nucleus
3. The nucleus has a positive charge

Question 15

Which subatomic particle is very small and practically weightless?

Answer 15

Electrons

Question 16

Which family is non-reactive?

Answer 16

Noble gases

Question 17

Which family has elements with only one valence electron?

Answer 17

Alkali Metals

Question 18

What are valence electrons more likely to do?

Answer 18

Because valence electrons are further from the nucleus, they are more likely to leave the atom and react with other atoms. They have a weak attachment to the nucleus.

Question 19

Lithium normally has a mass of 7. Sometimes it has a mass of 6 and sometimes it has a mass of 8. What is different about the isotopes Lithium-6 and Lithium-8?

Answer 19

They have different masses because they have a different number of neutrons.

Lithium-6 has one less neutrons.

Lithium-8 has one more neutron.

These are isotopes.

Question 20

Which element is this?

Answer 20

Neon. It has a full outer shell. It has 10 protons.

Question 21

List three advantages of using radioactive isotopes.

Answer 21

1. Can be used for Nuclear Energy, which produces less CO2 gas emmissions (less pollution)
2. Can be used in medicine for treating cancer (radiation) and x-rays.
3. Can save lives due to less pollution-related diseases.

Question 22

List 3 disadvantages of using radioactive isotopes.

Answer 22

1. Nuclear disasters can damage living things because of radioactive decay. Many people and living creatures could become sick and die.
2. Nuclear weapons. Extremely destructive and dangerous both short-term and long-term.
3. Nuclear waste is radioactive, so it needs to be stored in a very special way, often underground, for hundreds of years.