Which statement is false?

Options

A. Elements of VB group are transition elements.
B. elements of VA group are alll metalloids
C. elements of IA and IIA groups are metals
D. element of IVA group are neither strongly electronegative nor strongly electropositive.

Answer

To determine which statement is false, we will analyze each statement provided in the question.

### Step-by-Step Solution:

1. **Identify the Statements**:
- Statement A: Elements of group 5B are transition elements.
- Statement B: Elements of group 5A are metalloids.
- Statement C: Elements of groups 1A and 2A are metals.
- Statement D: The position of hydrogen in the periodic table is not fixed.
- Statement E: Elements of group 4A are neither strong electronegative nor strong electropositive.

2. **Analyze Statement A**:
- Group 5B (which corresponds to the d-block elements) includes transition metals.
- The transition metals are indeed found in the d-block of the periodic table, so this statement is **true**.

3. **Analyze Statement B**:
- Group 5A includes nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi).
- Among these, only arsenic (As) and antimony (Sb) are classified as metalloids.
- Therefore, the statement that all elements of group 5A are metalloids is **false**.

4. **Analyze Statement C**:
- Group 1A (alkali metals) and group 2A (alkaline earth metals) consist entirely of metals.
- Hence, this statement is **true**.

5. **Analyze Statement D**:
- The position of hydrogen in the periodic table is indeed not fixed; it can be placed in group 1A or group 17 based on its properties.
- Thus, this statement is **true**.

6. **Analyze Statement E**:
- Group 4A includes carbon (C), silicon (Si), germanium (Ge), tin (Sn), and lead (Pb).
- These elements exhibit a range of electronegativity and electropositivity, but they are not classified as strong in either category.
- Therefore, this statement is **true**.

### Conclusion:
The false statement among the options is **Statement B**, which claims that all elements of group 5A are metalloids.

### Final Answer:
**Statement B is false.**

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