Periodic Trends

Periodic Trends

Assessment

Flashcard

Chemistry, Science

9th - 12th Grade

Hard

Created by

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the atomic radius?

Back

The atomic radius is the distance from the nucleus of an atom to the outermost shell of electrons. It generally increases down a group and decreases across a period.

2.

FLASHCARD QUESTION

Front

Which element has the largest atomic radius in Period 4?

Back

Potassium (K) has the largest atomic radius in Period 4.

3.

FLASHCARD QUESTION

Front

What is ionization energy?

Back

Ionization energy is the amount of energy required to remove an electron from an atom in its gaseous state.

4.

FLASHCARD QUESTION

Front

Which element has a lower ionization energy than Scandium (Sc)?

Back

Calcium (Ca) has a lower ionization energy than Scandium (Sc).

5.

FLASHCARD QUESTION

Front

What is a cation?

Back

A cation is a positively charged ion that forms when an atom loses one or more electrons.

6.

FLASHCARD QUESTION

Front

What is an anion?

Back

An anion is a negatively charged ion that forms when an atom gains one or more electrons.

7.

FLASHCARD QUESTION

Front

How does atomic radius change across a period?

Back

Atomic radius decreases across a period from left to right due to increasing nuclear charge, which pulls electrons closer to the nucleus.

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