Hamilton County Benchmark 1 Spiral Review 23-24

A student makes an atomic model, as shown. How should the atomic model be corrected to represent and atom accurately?

• Electrons should not have any charges

• Neutrons should not reside in the nucleus

• The nucleus should be located at the center of an atom

• Protons and neutrons should both have positive charges

Tags

NGSS.MS-PS1-1

A group of students are given three different-colored circles to make an atomic model of a carbon atom. The chart shows the colored circle that represents each particle in the atom.

Which diagram represents the correct atomic model for a carbon atom?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

Review the portion of the periodic table shown.

Which statement about the elements is true?

• Oxygen and sulfur share similar properties

• Carbon and nitrogen share similar properties

• Carbon and silicon have the same number of electrons

• Oxygen and phosphorus have the same number of protons

Tags

NGSS.MS-PS1-1

The table lists three elements and their properties.

How will these elements most likely be arranged on the periodic table?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

Three metals from Group 1 on the periodic table were tested for reactivity in water. A 1 g sample of each metal was placed in a beaker containing 250 mL of water, and observations were recorded in a table.

Which statement best describes a conclusion that can be drawn from the investigation about the reactivity of metals?

• It is independent of the elements’ positions on the periodic table.

• It is constant within the group on the periodic table.

• It decreases down a group on the periodic table.

• It increases down a group on the periodic table.

Tags

NGSS.MS-PS1-2

Which model accurately shows an atom with 4 protons, 4 electrons, and 3 neutrons?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

A helium atom has two protons, two neutrons, and two electrons. Which model accurately represents the correct positions of the charged particles in a helium atom?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

This is a diagram of an oxygen atom.

What is the mass number of oxygen?

• 0

• 8

• 16

• 24

Tags

NGSS.MS-PS1-1

Using the periodic table as a reference, which pair of elements are nonmetals?

• oxygen and sulfur

• cobalt and zinc

• mercury and lead

• sodium and iodine

Tags

NGSS.MS-PS1-1

Examine the portion of the periodic table.

How can the outer shell of chlorine be described?

• The outer shell has 0 valence electrons.

• The outer shell has 2 valence electrons.

• The outer shell has 7 valence electrons.

• The outer shell has 8 valence electrons.

Tags

NGSS.MS-PS1-1