Atoms and Ions

What is the charge on a lithium atom that loses 1 electron?

• +1

• 0

• -1

• -2

Tags

NGSS.MS-PS1-1

How many protons does this isotope of titanium have? Hint titanium has an atomic number of 22.

• 48
• 22
• 26
• 70

Tags

NGSS.MS-PS1-1

How many electrons does this magnesium ion have?

• 24

• 12

• 10

• 14

Tags

NGSS.MS-PS1-1

How many neutrons does this Neon atom have?

• 21

• 11

• 10

• 12

Tags

NGSS.MS-PS1-1

If an atom gains an electron it is a(n)

• Positive ion
• Negative ion
• Isotope
• Neutral Atom

If an atom has more protons than electrons, it is a(n)

• Positive ion
• Negative ion
• Isotope
• Neutral atom

Tags

NGSS.MS-PS1-1

If an atom has an equal number of protons and electrons it is a...

• Positive ion
• Negative ion
• Isotope
• Neutral atom

Tags

NGSS.MS-PS1-1

What charge will atoms in group 1 have?

• +2

• +1

• -1

• -2

All atoms can become stable by...

• losing or gaining electrons to obtain a full valence (outer) shell

• losing or gaining protons to obtain a full valence (outer) shell

• losing or gaining neutrons to obtain a full valence (outer) shell

Which of the following best describes isotopes?

• Isotopes have different numbers of neutrons.

• Isotopes have different numbers of protons.

• Isotopes are atoms of the same element with the same mass.

• Isotopes have different numbers of electrons.

Tags

NGSS.HS-PS1-8