Atomic Structure and Periodic Table Test Review

1. What types of particles are found in the cloud surrounding the atom’s nucleus?

• Positively charged particles and negatively charged particles

• Negatively charged particles only

• Neutral particles and positively charged particles

• Positively charged particles only

2. 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

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

• Nitrogen (N)

• Sulfur (S)

• Arsenic (As)

• Silicon (Si)

6. 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

Which of these statements about the mass of subatomic particles is true?

• The mass of a proton is the same as the mass of an electron.

• The mass of a neutron is the same as the mass of an electron.

• The mass of a neutron is much greater than the mass of a proton.

• The mass of a proton is much greater than the mass of an electron.

Which statements best describe the charges on the particles in this model?

• Both particles X and Y have a positive charge.

   

  Particle Z has a negative charge.

• Both particles X and Y have a negative charge.

   

  Particle Z has a positive charge.

• Either particle X or particle Y has a positive charge.

   

  Particle Z has a negative charge.

• Either particle X or particle Y has a negative charge.

   

  Particle Z has a positive charge.

Tags

NGSS.MS-PS1-1

Which statement accurately describes the atoms of a specific element?

• An indium‚ In‚ atom contains 115 protons inside the nucleus and 49 neutrons outside the nucleus.

• A scandium‚ Sc‚ atom contains 45 electrons outside the nucleus and 21 neutrons inside the nucleus.

• An aluminum‚ Al‚ atom contains 27 electrons and 27 protons inside the nucleus.

• A zinc‚ Zn‚ atom contains 30 protons inside the nucleus and 30 electrons outside the nucleus.

Tags

NGSS.MS-PS1-1

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 fluorine, and it is not very reactive.

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

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

Which student’s responses are correct?

• Student 1

• Student 2

• Student 3

• Student 4

Tags

NGSS.MS-PS1-1

Based on the information in the table, which conclusion about the chemical reactivity of these elements is valid?

• Boron is the most reactive because it has the most protons.

• Fluorine is the most reactive because it has 7 electrons in the outer shell.

• Silicon is the most reactive because it has an equal number of protons and neutrons.

• Gallium is the most reactive because it has many more neutrons than protons.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2