SPS1 Physical Science Remediation

How does a carbon-14 atom differ from a carbon-12 atom?

• Carbon-14 has more protons than carbon-12.

• Carbon-14 has fewer neutrons than carbon-12.

• Carbon-14 has fewer protons than carbon-12.

• Carbon-14 has more neutrons than carbon-12.

What is the symbol for an aluminum ion?

• Al

• Al3+

• Al3-

• Al3

Which of these elements is the least reactive?

• sodium

• krypton

• chlorine

• aluminum

Which of the following describes an atom with a positive net charge?

• It contains more protons than electrons.

• It contains more electrons than protons.

• It contains more protons than neutrons.

• It contains more neutrons than protons.

Which atom is MOST likely to gain an electron?

• calcium

• phosphorous

• oxygen

• fluorine

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

An atom is an isotope of an element if it has

• the same number of neutrons and a different number of protons.

• the same number of neutrons and a different number of electrons.

• the same number of electrons and a different number of protons.

• the same number of protons and a different number of neutrons.

What type of charge do the particles surrounding the nucleus have?

• a neutral charge

• a positive charge

• a negative charge

• an alternating charge

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NGSS.MS-PS2-3

This is the periodic table of the elements with the element chlorine (Cl) highlighted. Which element reacts most similarly to chlorine? Why?

• sulfur because they are both located in the same period

• fluorine because they both have seven valence electrons

• sulfur because they both gain two electrons to form anions

• fluorine because they are both gases at room temperature

Tags

NGSS.MS-PS1-2

The heaviest particles in an atom are found within the

• electron.

• neutron.

• nucleus.

• proton.

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NGSS.HS-PS1-8

On the periodic table, the elements in the columns have the same

• density.

• atomic mass.

• physical properties.

• number of valence electrons.