DCP #3 Atoms/Periodic Table Review Lopes

Which of these best describes one of the subatomic particles that could be found at location X in the model of an atom shown above?

• It has mass but no charge.

• It has no mass and a positive charge.

• It has a large mass and a negative charge.

• It has no mass and an equal number of positive and negative charges.

Tags

NGSS.MS-PS1-1

An atom of which element is represented by this model?

• Boron (B)

• Carbon (C)

• Neon (Ne)

• Sodium (Na)

Tags

NGSS.MS-PS1-1

The periodic table is organized into groups and periods of elements. The characteristics of a certain group of elements are listed below.

-is shiny is solid at room temperature

-has atoms with two

-valence electrons

Which of these elements is in this group?

• Lithium

• Strontium

• Aluminum

• Silicon

A student is studying the ways different elements are similar to one another. Diagrams of atoms from four different elements are shown below.

Which two atoms are of elements in the same group in the periodic table?

• Atom 1 and Atom 2

• Atom 1 and Atom 4

• Atom 2 and Atom 3

• Atom 3 and Atom 4

Tags

NGSS.MS-PS1-1

A researcher wants to experiment with an element that reacts like phosphorous (P) but has a greater atomic mass. Which element should the researcher select for the experiment?

• Nitrogen (N)

• Sulfur (S)

• Arsenic (As)

• Silicon (Si)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

(6.6A) Some students conducted a laboratory investigation to learn more about the physical properties of different elements. They observed four samples and recorded their observations in the table below.
Based on these observations, which sample is most likely a nonmetal? 

• Sample 1
• Sample 2
• Sample 3
• Sample 4

The atoms of a certain element each contain 11 protons and 1 valence electron. Which statement correctly identifies this element and describes its chemical reactivity?

• The element is sodium, and it is highly reactive.

• The element is flourine, and it is not very reactive.

• The element is sodium and it is not very reactive

• The element is flourine, and it is highly reactive

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which two elements on the periodic table are in the same period?

• Sn and Rb

• F and Cl

• K and Ba

• Se and Te

Four students were asked to name the parts of an atom that determine the atom’s identity and chemical properties. The students’ responses are shown in the table below.

Which student’s responses are correct?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

What determines how chemically reactive an element is?

• electrons

• valence electrons

• protons

• neutrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2