Ions, isotope retest

Cations are

• positive
• negative
• on the right side of the periodi table.
• nonmetals

Tags

NGSS.HS-PS1-1

Ions are: 

• atoms with a positive or negative charge
• atoms with no charge
• atoms with ONLY a positive charge
• atoms with ONLY a negative charge

Negative ions form when atoms _________ valence electrons.

• lose
• gain
• share

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Element X has 19 protons and 20 neutrons while element Y has 19 protons and 21 neutrons. What can you say about these elements?

• They are different elements.

• Element Y is an isotope of element X.

• They are identical elements.

• They have the same mass and same atomic number.

How many protons and neutrons are in the nucleus of an atom of the Silicon isotope that has a mass number of 30 and atomic number of 14? Look at the table.

• A

• B

• C

• D

Isotopes are _______.

• Atoms are negatively charged.

• Atoms that are positively charged.

• Atoms that have the same atomic number but different number of neutrons.

• Atoms that have the same number of neutrons but different atomic numbers.

What particle account for the charge of the nucleus of an atom?

• Protons

• Electrons

• Neutrons

• Protons and Neutrons

How many PROTONS does nitrogen have if it has the following charge: N^3- ?

• 14

• 7

• 10

• 4

A negatively charged ion that has gained electrons to satisfy the octet rule (metals do this)

• Anion

• Cation

• Neutral Atom

• Isotope

A positively charged ion that has lost electrons to satisfy the octet rule (non-metals do this)

• Anion

• Cation

• Neutral Atom

• Isotope