Semester Exam Review

Which statement correctly describes the location and charge of the neutrons in an atom?

• The neutrons are inside the nucleus and have a positive charge.

• The neutrons are outside the nucleus and have a neutral charge.

• The neutrons are outside the nucleus and have a negative charge.

• The neutrons are inside the nucleus and have a neutral charge.

What type of particles are found in the cloud surrounding the atom's nucleus?

• Neutral particles and positively charge particles

• Positive charge particles only

• Negatively charge particles and positively charge particles

• Negatively charge particles only

Which of the following best describes a proton?

• It has a positive charge and the same mass as an electron

• It has a neutral charge and the same mass as an neutron

• It has a positive charge and the same mass as an neutron

• It has a negative charge and the same mass as an electron

What number indicates the nucleus?

• 1
• 2
• 3
• 4

What number indicates an electron?

• 1
• 2
• 3
• 4

A Student drew atomic models of four atomic models. Based on the drawings, which one is the least reactive?

• Chlorine, because it has three energy levels with seven electrons in the third level

• Gallium, because it has four energy levels with three electrons in the fourth level

• Neon, because it has two energy levels with eight electrons in the second level

• Tin, because it has five energy levels with four electrons in the fifth level

An atom of which element is represented by this model?

• Carbon (C)

• Neon (Ne)

• Sodium (Na)

• Boron (B)

An atom consists of 12 protons, 12 electrons, and 12 neutrons. Which of the following can be used to identify the element?

• Neutrons

• Electrons

• Atomic number

• Atomic mass

An atom has 11 protons, 12 neutrons, and 11 electrons. What is the identity of the element?

• Sodium

• Titanium

• Vanadium

• Magnesium

Based on the data, which number shows the correct location of the element with 2 valence electrons and 3 energy levels.

• 1

• 2

• 3

• 4