Emma Sci

Front

What is the charge of a proton?

Back

Positive

Answer explanation

A proton carries a positive charge, which is fundamental to its identity as a subatomic particle. This distinguishes it from electrons, which have a negative charge, and neutrons, which are neutral.

Front

Where is the electron located in an atom?

Back

Outside the nucleus

Answer explanation

Electrons are located outside the nucleus of an atom, in regions called electron shells or orbitals. This distinguishes them from protons and neutrons, which reside in the nucleus.

Front

Which of the following is the correct chemical equation for photosynthesis? Options: 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂, 6O₂ + C₆H₁₂O₆ → 6CO₂ + 6H₂O, C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O, 6CO₂ + C₆H₁₂O₆ → 6O₂ + 6H₂O

Back

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

Answer explanation

The correct equation for photosynthesis is 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂, which shows that carbon dioxide and water are converted into glucose and oxygen using sunlight.

Front

How many orbitals are there in the 'd' orbital type?

Back

5

Answer explanation

The 'd' orbital type has 5 orbitals, which are designated as dxy, dyz, dzx, dx2-y2, and dz2. Each of these orbitals can hold a maximum of 2 electrons, making the total number of 'd' orbitals equal to 5.

Front

How many orbitals are there in the 's' orbital type?

Back

1

Answer explanation

The 's' orbital type has only 1 orbital. Each type of orbital (s, p, d, f) has a specific number of orbitals, and for 's', it is always 1.

Front

How many orbitals are there in the 'p' orbital type?

Back

3

Answer explanation

The 'p' orbital type has 3 orbitals, designated as px, py, and pz. Each of these can hold a maximum of 2 electrons, making the total capacity of the 'p' subshell 6 electrons.

Front

How many orbitals are there in the 'f' orbital type?

Back

7

Answer explanation

The 'f' orbital type has 7 orbitals. Each type of orbital (s, p, d, f) has a specific number of orbitals: s has 1, p has 3, d has 5, and f has 7. Therefore, the correct answer is 7.

Front

How many electrons are there in the 's' orbital type?

Back

2

Answer explanation

The 's' orbital can hold a maximum of 2 electrons. This is due to the Pauli exclusion principle, which states that no two electrons can have the same set of quantum numbers, allowing only two electrons in the 's' orbital.

Front

How many electrons are there in the 'p' orbital type?

Back

6

Answer explanation

The 'p' orbital can hold a maximum of 6 electrons. This is because it consists of three sub-orbitals (p_x, p_y, p_z), each capable of holding 2 electrons, totaling 6.

Front

How many electrons are there in the 'd' orbital type?

Back

10

Answer explanation

The 'd' orbital can hold a maximum of 10 electrons. This is because there are five 'd' orbitals, and each can hold 2 electrons, leading to a total of 5 x 2 = 10 electrons.